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Translation
King James Version
¶ And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters.
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KJV (with Strong's)
And God H430 said H559, Let there be a firmament H7549 in the midst H8432 of the waters H4325, and let it divide H914 the waters H4325 from the waters H4325.
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Complete Jewish Bible
God said, “Let there be a dome in the middle of the water; let it divide the water from the water.”
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Berean Standard Bible
And God said, “Let there be an expanse between the waters, to separate the waters from the waters.”
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American Standard Version
And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters.
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World English Bible Messianic
God said, “Let there be an expanse in the middle of the waters, and let it divide the waters from the waters.”
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Geneva Bible (1599)
Againe God said, Let there be a firmament in the mids of the waters: and let it separate the waters from the waters.
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Young's Literal Translation
And God saith, `Let an expanse be in the midst of the waters, and let it be separating between waters and waters.'
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In the KJVVerse 6 of 31,102

Study This Verse

SUMMARY

Genesis 1:6 presents God's majestic decree on the second day of creation, bringing into existence the "firmament" or expanse. Through His powerful spoken word, God meticulously separates the pre-existing primordial waters, establishing distinct realms within the nascent cosmos. This foundational act of divine division is crucial for transforming an undifferentiated watery mass into a structured, ordered, and ultimately life-sustaining world, profoundly showcasing God's meticulous design, sovereign power, and purposeful intent for His creation.

CONTEXT

  • Literary Context: This verse marks the beginning of the second day of creation, following God's initial act of bringing light into existence and separating it from darkness on day one, as detailed in Genesis 1:3-5. The narrative of Genesis 1 unfolds as a structured, seven-day account of God bringing order to a "formless and void" earth (Genesis 1:2). After establishing light and time, God's next deliberate step is to impose spatial structure by creating a division within the ubiquitous waters. This act of separation on day two sets the stage for the emergence of dry land, vegetation, and living creatures in the subsequent days, building systematically towards a fully habitable world, as described throughout the entire creation account in Genesis 1.
  • Historical & Cultural Context: In the ancient Near East, various creation myths often depicted creation as a struggle between deities or a chaotic, spontaneous event. The Genesis account, in stark contrast, portrays a singular, sovereign God who creates effortlessly through His word. The concept of "waters" (Hebrew mayim) in ancient cosmologies often represented primordial chaos or an undifferentiated mass. God's act of dividing these waters and establishing a "firmament" (Hebrew raqiaʻ) would have been understood by the original audience as a powerful demonstration of divine order triumphing over potential chaos, establishing a stable and predictable cosmos. While some ancient worldviews might have conceived of a literal, solid dome, the biblical text's emphasis is on the functional separation that allows for a habitable atmosphere and a regulated water cycle, preparing the earth for life.
  • Key Themes: Genesis 1:6 contributes significantly to several overarching themes within the chapter and the broader biblical narrative. Foremost is the theme of Divine Sovereignty and Omnipotence, where God's spoken word alone is sufficient to bring complex structures into being, highlighting His absolute control over creation. It also underscores Order out of Chaos, as God systematically transforms a "formless and void" world into a highly organized and functional cosmos. The act of "dividing" introduces the theme of Distinction and Separation, a principle that recurs throughout Scripture, not only in creation but also in God's relationship with humanity, separating the holy from the common and His people for His purposes. Finally, this verse is a crucial step in the theme of Preparation for Life, as the establishment of the firmament and the division of waters are necessary precursors for the emergence of dry land, vegetation, and living creatures in the subsequent days of creation, demonstrating God's purposeful design for a world teeming with life, as seen in the creation of living creatures.

EXPOSITION AND ANALYSIS

Key Word Analysis

  • God (Hebrew, ʼĕlôhîym', H430): This plural noun, used with a singular verb, refers to the supreme God, the Creator. It emphasizes His majesty, power, and comprehensive authority over all creation. The use of this term immediately establishes the divine origin and nature of the creative acts.
  • firmament (Hebrew, râqîyaʻ', H7549): Derived from a root meaning "to stamp," "to spread out," or "to hammer out," this term describes an expanse. While sometimes interpreted as a solid dome in ancient cosmologies, in the context of Genesis 1, it refers to the atmospheric heavens—the sky—which provides a breathable space and separates the lower waters from the upper. It signifies a vast, spread-out space rather than a rigid structure.
  • divide (Hebrew, bâdal', H914): This primitive root means "to separate," "distinguish," or "differ." In this verse, it denotes God's purposeful act of establishing distinct realms within the primordial waters. This act of division is not arbitrary but is essential for creating the conditions necessary for life, transforming an undifferentiated mass into an ordered system.

Verse Breakdown

  • "And God said,": This recurring phrase, appearing ten times in the creation account, powerfully emphasizes the effortless and authoritative nature of divine creation. It signifies that creation is not a laborious process or a product of chance, but an immediate and omnipotent act of God's spoken word, demonstrating His absolute sovereignty and power over all things.
  • "Let there be a firmament in the midst of the waters,": This command reveals God's intention to bring spatial order to the formless earth. The "firmament" (sky/atmosphere) is created within the existing primordial waters, indicating that God is organizing and differentiating pre-existing material, not necessarily creating ex nihilo (out of nothing) at this specific point, but rather imposing structure and boundaries.
  • "and let it divide the waters from the waters.": This clause states the primary purpose of the firmament: to establish a clear separation. This refers to the distinction between the "waters below" the firmament (which would later coalesce into seas and oceans on day three) and the "waters above" the firmament (commonly understood as clouds, vapor, and precipitation, forming the earth's weather system). This division is a foundational act necessary for the subsequent creation of dry land and the sustenance of life on earth.

Literary Devices

Genesis 1:6 employs several literary techniques to convey its profound theological message. The most prominent is Divine Fiat, exemplified by the repeated phrase "And God said." This rhetorical device underscores God's absolute authority and the immediate, effortless efficacy of His word in creation. The universe comes into being not through struggle or effort, but by divine command. Repetition is also evident in the phrase "the waters from the waters," which emphasizes the precise and deliberate nature of the separation. This repetition highlights the establishment of two distinct bodies of water, one above and one below the firmament. Furthermore, the verse demonstrates Progression and Order, as it builds upon the initial act of creation (light) by introducing a new, more complex layer of spatial organization, showcasing God's systematic and purposeful design.

THEOLOGICAL AND THEMATIC CONNECTIONS

Genesis 1:6 profoundly reveals God as a God of meticulous order, not chaos. He systematically brings structure and boundaries to the cosmos, demonstrating His wisdom and foresight in preparing a habitable environment. This act of creation underscores the absolute power and efficacy of God's spoken word, which effortlessly brings about His will.

  • Psalm 33:6 - "By the word of the Lord were the heavens made; and all the host of them by the breath of his mouth."
  • Isaiah 55:11 - "So shall my word be that goeth forth out of my mouth: it shall not return unto me void, but it shall accomplish that which I please, and it shall prosper in the thing whereto I sent it."
  • 2 Corinthians 6:17 - "Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you."

REFLECTION AND APPLICATION

Genesis 1:6 invites us to marvel at the divine wisdom that brings order out of chaos, not only in the cosmos but also in our personal lives. Just as God separated the waters to create distinct environments, He is able to bring clarity, purpose, and structure to our confused circumstances and inner turmoil. We are called to trust in His sovereign control and the powerful efficacy of His word to establish beauty and order, even when our lives may feel formless or void. The intricate design of the world, from the vastness of the atmosphere to the precise balance of the water cycle, stands as a constant testament to His wisdom and creative power, inviting us to live in awe of His majesty and to seek His order in our own spheres of influence.

Questions for Reflection

  • How does God's act of "dividing" in creation speak to His character and His work in our lives today?
  • In what areas of your life do you need God to bring order out of chaos, similar to His work in Genesis 1:6?
  • How does the effortless power of God's spoken word in creation encourage your faith in His ability to accomplish His will in your circumstances?

FAQ

What is the "firmament" mentioned in Genesis 1:6?

Answer: The "firmament" (Hebrew raqiaʻ) refers to the expanse or atmosphere—the sky. It is the space created by God to separate the waters above (understood as clouds, vapor, and atmospheric moisture) from the waters below (the oceans and seas on the earth's surface). It is the breathable atmosphere where birds would later fly and where celestial bodies would be placed.

Does this verse imply a solid dome over the earth?

Answer: While the root meaning of raqiaʻ can suggest something hammered out or solid, the broader biblical context and the progression of creation indicate an expansive, atmospheric space rather than a literal solid dome. For instance, Genesis 1:20 states that birds fly "in the open firmament of heaven," which clearly points to a non-solid, atmospheric space. Therefore, it is best understood as the sky or atmosphere.

Why was this division of waters necessary?

Answer: This division was crucial for creating a habitable environment. By separating the waters, God established the atmospheric conditions necessary for life, allowing for the formation of dry land on day three (Genesis 1:9-10) and enabling the regulated water cycle essential for vegetation and all living creatures. It was a foundational step in preparing the earth to sustain complex ecosystems.

CHRIST-CENTERED FULFILLMENT

While Genesis 1:6 does not explicitly mention Christ, it powerfully reveals Him as the active agent of creation. The New Testament unequivocally affirms that all things were created through Him and for Him, identifying Jesus as the very Word of God through whom the cosmos was spoken into existence. Therefore, the authoritative command "Let there be a firmament in the midst of the waters, and let it divide the waters from the waters" is not merely God the Father's voice, but the very voice of the pre-incarnate Christ, bringing order, structure, and life to a formless world. Just as He brought order out of cosmic chaos, He continues to bring order out of spiritual chaos, making Him the ultimate source of a new creation where old things pass away and all things become new. He is the one who separates light from darkness, truth from error, and His redeemed people from the world, fulfilling the divine principle of distinction established at creation.

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Commentary on Genesis 1 verses 6–8

We have here an account of the second day's work, the creation of the firmament, in which observe, 1. The command of God concerning it: Let there be a firmament, an expansion, so the Hebrew word signifies, like a sheet spread, or a curtain drawn out. This includes all that is visible above the earth, between it and the third heavens: the air, its higher, middle, and lower, regions - the celestial globe, and all the spheres and orbs of light above: it reaches as high as the place where the stars are fixed, for that is called here the firmament of heaven (Gen 1:14, Gen 1:15), and as low as the place where the birds fly, for that also is called the firmament of heaven, Gen 1:20. When God had made the light, he appointed the air to be the receptacle and vehicle of its beams, and to be as a medium of communication between the invisible and the visible world; for, though between heaven and earth there is an inconceivable distance, yet there is not an impassable gulf, as there is between heaven and hell. This firmament is not a wall of partition, but a way of intercourse. See Job 26:7; Job 37:18; Psa 104:3; Amo 9:6. 2. The creation of it. Lest it should seem as if God had only commanded it to be done, and some one else had done it, he adds, And God made the firmament. What God requires of us he himself works in us, or it is not done. He that commands faith, holiness, and love, creates them by the power of his grace going along with his word, that he may have all the praise. Lord, give what thou commandest, and then command what thou pleasest. The firmament is said to be the work of God's fingers, Psa 8:3. Though the vastness of its extent declares it to be the work of his arm stretched out, yet the admirable fineness of its constitution shows that it is a curious piece of art, the work of his fingers. 3. The use and design of it - to divide the waters from the waters, that is, to distinguish between the waters that are wrapped up in the clouds and those that cover the sea, the waters in the air and those in the earth. See the difference between these two carefully observed, Deu 11:10, Deu 11:11, where Canaan is upon this account preferred to Egypt, that Egypt was moistened and made fruitful with the waters that are under the firmament, but Canaan with waters from above, out of the firmament, even the dew of heaven, which tarrieth not for the sons of men, Mic 5:7. God has, in the firmament of his power, chambers, store-chambers, whence he watereth the earth, Psa 104:13; Psa 65:9, Psa 65:10. He has also treasures, or magazines, of snow and hail, which he hath reserved against the day of battle and war, Job 38:22, Job 38:23. O what a great God is he who has thus provided for the comfort of all that serve him and the confusion of all that hate him! It is good having him our friend, and bad having him our enemy. 4. The naming of it: He called the firmament heaven. It is the visible heaven, the pavement of the holy city; above the firmament God is said to have his throne (Eze 1:26), for he has prepared it in the heavens; the heavens therefore are said to rule, Dan 4:26. Is not God in the height of heaven? Job 22:12. Yes, he is, and we should be led by the contemplation of the heavens that are in our eye to consider our Father who is in heaven. The height of the heavens should remind us of God's supremacy and the infinite distance there is between us and him; the brightness of the heavens and their purity should remind us of his glory, and majesty, and perfect holiness; the vastness of the heavens, their encompassing of the earth, and the influence they have upon it, should remind us of his immensity and universal providence.

Matthew Henry (1662–1714) — Commentary on the Whole Bible. This section covers verses 6–8. Public domain.
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TertullianAD 220
What of the fact that waters were in some way the regulating powers by which the disposition of the world thenceforward was constituted by God? For the suspension of the celestial firmament in the midst He caused by "dividing the waters;" the suspension of "the dry land" He accomplished by "separating the waters." After the world had been hereupon set in order through its elements, when inhabitants were given it, "the waters" were the first to receive the precept "to bring forth living creatures." Water was the first to produce that which had life, that it might be no wonder in baptism if waters know how to give life. For was not the work of fashioning man himself also achieved with the aid of waters? Suitable material is found in the earth, yet not apt for the purpose unless it be moist and juicy; which (earth) "the waters," separated the fourth day before into their own place, temper with their remaining moisture to a clayey consistency.[On Baptism 3]
Hippolytus of RomeAD 235
Hippolytus Exegetical Fragments - On Genesis
And let it divide between water and water: and it was so. And God made the firmament; and God divided between the water which was under the firmament, and the water above the firmament: and it was so.

As the excessive volume of water bore along over the face of the earth, the earth was by reason thereof "invisible" and "formless." When the Lord of all designed to make the invisible visible, He fixed then a third part of the waters in the midst; and another third part He set by itself on high, raising it together with the firmament by His own power; and the remaining third He left beneath, for the use and benefit of men. Now at this point we have an asterisk. The words are found in the Hebrew, but do not occur in the Septuagint.
Hippolytus of RomeAD 235
Hippolytus Exegetical Fragments - On Genesis
On the first day God made what He made out of nothing. But on the other days He did not make out of nothing, but out of what He had made on the first day, by moulding it according to His pleasure.
Ephrem the SyrianAD 373
The waters that the earth drank on the first day were not salty. Even if they were like the deep on the surface of the earth, they were still not seas. For it was in the seas that these waters, which were not salty before being gathered together, became salty. When they were sent throughout the entire earth for the earth to drink they were sweet, but when they were gathered into seas on the third day, they became salty, lest they become stagnant due to their being gathered together and so that they might receive the rivers that enter into them without increasing. For the quantity that the seas require for nourishment is the measure of the rivers that flow down into them. The rivers flow down into the seas lest the heat of the sun dry them up. The saltiness [ of the seas ] then swallows up [ the rivers ] lest they increase, rise up and cover the earth. Thus the rivers turn into nothing, as it were, because the saltiness of the sea swallows them up.
Even if the seas were created when the waters were created and were hidden in the waters, and the seas were bitter, the waters above them were not bitter. For just as in the flood there were seas, but they were covered over [ by those waters ], they were not able to change the sweet waters of the flood, which came from above, into their bitter nature, for if these waters had been bitter, how were the olives and all the plants preserved in them? How did those of the house of Noah and those with them drink from them?
Even if Noah had commanded that every food be brought for himself and those with him because there would be no food anywhere, he did not allow water to be brought because those who had entered the ark would be able to take the water from outside of the ark to drink. Therefore, just as the waters of the flood were not salty while the seas were hidden within them, neither were the waters that were gathered on the third day bitter even though the seas below them were bitter.
Just as the gathering of the waters did not precede that word which said, "Let the waters be gathered and let the dry land appear," [ Gen1:9 ] neither did the seas exist until that moment when God "called the gathering of water 'seas'." When they received their name they were changed. In their [ new ] place the [ waters ] attained that saltiness which had not been theirs [ even ] outside of their [ old ] place. For their place became deep at that very moment when God said, "Let the waters be gathered into one place." [ Gen1:9 ] Then either the land [ that contained ] the sea was brought down below the [ level of the ] earth to receive within it its own waters along with the waters that were above the entire earth, or the waters swallowed each other so that the place might be sufficient for them, or the place of the sea shook and it became a great depth and the waters quickly hastened into that basin. Although the will of God had gathered these waters, when the earth was created, a gate was opened for them to be gathered into one place. Just as in the gathering of the first and second waters there was found no gathering place because there was no place from which they might go out, so now do these waters come down with all the rains and showers and are gathered into seas along paths and roads which had been prepared for them on the first day.
After Moses spoke of those things that came to be on the first day, he began to write about those things that came to be on the second day, saying, "And God said, 'Let there be a firmament between the waters and let it separate the waters below the firmament from the waters above the firmament.'" [ Gen1:6 ] The firmament between the waters was pressed together from the waters. It was of the same measure as the waters that were spread out over the surface of the earth. Then if, in its origin, it was above the earth (for the earth, water and fire were beneath it, while water, wind and darkness were above it), how do others posit that this [ firmament ], which encloses this world within it like a child in the womb, was created in the middle of everything as the womb of everything?
If, on the other hand, the firmament had been created as the center of everything, light, darkness and wind, which were above the firmament when it was created, would have been confined above the firmament. If the creation [ of the firmament ] had occurred at night, the darkness and wind would also have remained there together with the waters which remained there. But if the creation [ of the firmament ] had occurred in the day, the light and the wind also would have remained there along with the waters. And if the [ wind, water and lights ] had remained there then the [ wind, water and lights ] here would be other things. When, then, could the [ wind, water and lights ] have been created? If, however, they did not remain there, how did those elements that were above [ the firmament ] when they were created move below it?
Basil of CaesareaAD 379
1. We have now recounted the works of the first day, or rather of one day. Far be it from me indeed, to take from it the privilege it enjoys of having been for the Creator a day apart, a day which is not counted in the same order as the others. Our discussion yesterday treated of the works of this day, and divided the narrative so as to give you food for your souls in the morning, and joy in the evening. Today we pass on to the wonders of the second day. And here I do not wish to speak of the narrator's talent, but of the grace of Scripture, for the narrative is so naturally told that it pleases and delights all the friends of truth. It is this charm of truth which the Psalmist expresses so emphatically when he says, How sweet are your words unto my taste, yea, sweeter than honey to my mouth. Yesterday then, as far as we were able, we delighted our souls by conversing about the oracles of God, and now today we are met together again on the second day to contemplate the wonders of the second day.
I know that many artisans, belonging to mechanical trades, are crowding around me. A day's labour hardly suffices to maintain them; therefore I am compelled to abridge my discourse, so as not to keep them too long from their work. What shall I say to them? The time which you lend to God is not lost: he will return it to you with large interest. Whatever difficulties may trouble you the Lord will disperse them. To those who have preferred spiritual welfare, He will give health of body, keenness of mind, success in business, and unbroken prosperity. And, even if in this life our efforts should not realise our hopes, the teachings of the Holy Spirit are none the less a rich treasure for the ages to come. Deliver your heart, then, from the cares of this life and give close heed to my words. Of what avail will it be to you if you are here in the body, and your heart is anxious about your earthly treasure?
2. And God said Let there be a firmament in the midst of the waters, and let it divide the waters from the waters. Genesis 1:6 Yesterday we heard God's decree, Let there be light. Today it is, Let there be a firmament. There appears to be something more in this. The word is not limited to a simple command. It lays down the reason necessitating the structure of the firmament: it is, it is said, to separate the waters from the waters. And first let us ask how God speaks? Is it in our manner? Does His intelligence receive an impression from objects, and, after having conceived them, make them known by particular signs appropriate to each of them? Has He consequently recourse to the organs of voice to convey His thoughts? Is He obliged to strike the air by the articulate movements of the voice, to unveil the thought hidden in His heart? Would it not seem like an idle fable to say that God should need such a circuitous method to manifest His thoughts? And is it not more conformable with true religion to say, that the divine will and the first impetus of divine intelligence are the Word of God? It is He whom Scripture vaguely represents, to show us that God has not only wished to create the world, but to create it with the help of a co-operator. Scripture might continue the history as it is begun: In the beginning God created the heaven and the earth; afterwards He created light, then He created the firmament. But, by making God command and speak, the Scripture tacitly shows us Him to Whom this order and these words are addressed. It is not that it grudges us the knowledge of the truth, but that it may kindle our desire by showing us some trace and indication of the mystery. We seize with delight, and carefully keep, the fruit of laborious efforts, while a possession easily attained is despised. Such is the road and the course which Scripture follows to lead us to the idea of the Only begotten. And certainly, God's immaterial nature had no need of the material language of voice, since His very thoughts could be transmitted to His fellow-worker. What need then of speech, for those Who by thought alone could communicate their counsels to each other? Voice was made for hearing, and hearing for voice. Where there is neither air, nor tongue, nor ear, nor that winding canal which carries sounds to the seat of sensation in the head, there is no need for words: thoughts of the soul are sufficient to transmit the will. As I said then, this language is only a wise and ingenious contrivance to set our minds seeking the Person to whom the words are addressed.
3. In the second place, does the firmament that is called heaven differ from the firmament that God made in the beginning? Are there two heavens? The philosophers, who discuss heaven, would rather lose their tongues than grant this. There is only one heaven, they pretend; and it is of a nature neither to admit of a second, nor of a third, nor of several others. The essence of the celestial body quite complete constitutes its vast unity. Because, they say, every body which has a circular motion is one and finite. And if this body is used in the construction of the first heaven, there will be nothing left for the creation of a second or a third. Here we see what those imagine who put under the Creator's hand uncreated matter; a lie that follows from the first fable. But we ask the Greek sages not to mock us before they are agreed among themselves. Because there are among them some who say there are infinite heavens and worlds. When grave demonstrations shall have upset their foolish system, when the laws of geometry shall have established that, according to the nature of heaven, it is impossible that there should be two, we shall only laugh the more at this elaborate scientific trifling. These learned men see not merely one bubble but several bubbles formed by the same cause, and they doubt the power of creative wisdom to bring several heavens into being! We find, however, if we raise our eyes towards the omnipotence of God, that the strength and grandeur of the heavens differ from the drops of water bubbling on the surface of a fountain. How ridiculous, then, is their argument of impossibility! As for myself, far from not believing in a second, I seek for the third whereon the blessed Paul was found worthy to gaze. And does not the Psalmist in saying heaven of heavens give us an idea of their plurality? Is the plurality of heaven stranger than the seven circles through which nearly all the philosophers agree that the seven planets pass—circles which they represent to us as placed in connection with each other like casks fitting the one into the other? These circles, they say, carried away in a direction contrary to that of the world, and striking the æther, make sweet and harmonious sounds, unequalled by the sweetest melody. And if we ask them for the witness of the senses, what do they say? That we, accustomed to this noise from our birth, on account of hearing it always, have lost the sense of it; like men in smithies with their ears incessantly dinned. If I refuted this ingenious frivolity, the untruth of which is evident from the first word, it would seem as though I did not know the value of time, and mistrusted the intelligence of such an audience.
But let me leave the vanity of outsiders to those who are without, and return to the theme proper to the Church. If we believe some of those who have preceded us, we have not here the creation of a new heaven, but a new account of the first. The reason they give is, that the earlier narrative briefly described the creation of heaven and earth; while here scripture relates in greater detail the manner in which each was created. I, however, since Scripture gives to this second heaven another name and its own function, maintain that it is different from the heaven which was made at the beginning; that it is of a stronger nature and of a special use to the universe.
Basil of CaesareaAD 379
HEXAEMERON 3.4
And surely we need not believe, because [the firmament] seems to have had its origin, according to the general understanding, from water, that it is like either frozen water or some such material that takes its origin from the percolation of moisture, such as is a crystalline rock.
Basil of CaesareaAD 379
The mass of waters, which from all directions flowed over the earth, and was suspended in the air, was infinite, so that there was no proportion between it and the other elements. Thus, as it has been already said, the abyss covered the earth. We give the reason for this abundance of water. None of you assuredly will attack our opinion; not even those who have the most cultivated minds, and whose piercing eye can penetrate this perishable and fleeting nature; you will not accuse me of advancing impossible or imaginary theories, nor will you ask me upon what foundation the fluid element rests. By the same reason which makes them attract the earth, heavier than water, from the extremities of the world to suspend it in the centre, they will grant us without doubt that it is due both to its natural attraction downwards and its general equilibrium, that this immense quantity of water rests motionless upon the earth. Therefore the prodigious mass of waters was spread around the earth; not in proportion with it and infinitely larger, thanks to the foresight of the supreme Artificer, Who, from the beginning, foresaw what was to come, and at the first provided all for the future needs of the world. But what need was there for this superabundance of water? The essence of fire is necessary for the world, not only in the economy of earthly produce, but for the completion of the universe; for it would be imperfect if the most powerful and the most vital of its elements were lacking. Now fire and water are hostile to and destructive of each other. Fire, if it is the stronger, destroys water, and water, if in greater abundance, destroys fire. As, therefore, it was necessary to avoid an open struggle between these elements, so as not to bring about the dissolution of the universe by the total disappearance of one or the other, the sovereign Disposer created such a quantity of water that in spite of constant diminution from the effects of fire, it could last until the time fixed for the destruction of the world. He who planned all with weight and measure, He who, according to the word of Job, knows the number of the drops of rain, knew how long His work would last, and for how much consumption of fire He ought to allow. This is the reason of the abundance of water at the creation. Further, there is no one so strange to life as to need to learn the reason why fire is essential to the world. Not only all the arts which support life, the art of weaving, that of shoemaking, of architecture, of agriculture, have need of the help of fire, but the vegetation of trees, the ripening of fruits, the breeding of land and water animals, and their nourishment, all existed from heat from the beginning, and have been since maintained by the action of heat. The creation of heat was then indispensable for the formation and the preservation of beings, and the abundance of waters was no less so in the presence of the constant and inevitable consumption by fire.
6. Survey creation; you will see the power of heat reigning over all that is born and perishes. On account of it comes all the water spread over the earth, as well as that which is beyond our sight and is dispersed in the depths of the earth. On account of it are abundance of fountains, springs or wells, courses of rivers, both mountain torrents and ever flowing streams, for the storing of moisture in many and various reservoirs. From the East, from the winter solstice flows the Indus, the greatest river of the earth, according to geographers. From the middle of the East proceed the Bactrus, the Choaspes, and the Araxes, from which the Tanais detaches itself to fall into the Palus-Mæotis. Add to these the Phasis which descends from Mount Caucasus, and countless other rivers, which, from northern regions, flow into the Euxine Sea. From the warm countries of the West, from the foot of the Pyrenees, arise the Tartessus and the Ister, of which the one discharges itself into the sea beyond the Pillars and the other, after flowing through Europe, falls into Euxine Sea. Is there any need to enumerate those which the Ripæan mountains pour forth in the heart of Scythia, the Rhone, and so many other rivers, all navigable, which after having watered the countries of the western Gauls and of Celts and of the neighbouring barbarians, flow into the Western sea? And others from the higher regions of the South flow through Ethiopia, to discharge themselves some into our sea, others into inaccessible seas, the Ægon the Nyses, the Chremetes, and above all the Nile, which is not of the character of a river when, like a sea, it inundates Egypt. Thus the habitable part of our earth is surrounded by water, linked together by vast seas and irrigated by countless perennial rivers, thanks to the ineffable wisdom of Him Who ordered all to prevent this rival element to fire from being entirely destroyed.
However, a time will come, when all shall be consumed by fire; as Isaiah says of the God of the universe in these words, That says to the deep, Be dry, and I will dry up your rivers. Isaiah 44:27 Reject then the foolish wisdom of this world, and receive with me the more simple but infallible doctrine of truth.
7. Therefore we read: Let there be a firmament in the midst of the waters, and let it divide the waters from the waters. I have said what the word firmament in Scripture means. It is not in reality a firm and solid substance which has weight and resistance; this name would otherwise have better suited the earth. But, as the substance of superincumbent bodies is light, without consistency, and cannot be grasped by any one of our senses, it is in comparison with these pure and imperceptible substances that the firmament has received its name. Imagine a place fit to divide the moisture, sending it, if pure and filtered, into higher regions, and making it fall, if it is dense and earthy; to the end that by the gradual withdrawal of the moist particles the same temperature may be preserved from the beginning to the end. You do not believe in this prodigious quantity of water; but you do not take into account the prodigious quantity of heat, less considerable no doubt in bulk, but exceedingly powerful nevertheless, if you consider it as destructive of moisture. It attracts surrounding moisture, as the melon shows us, and consumes it as quickly when attracted, as the flame of the lamp draws to it the fuel supplied by the wick and burns it up. Who doubts that the æther is an ardent fire? If an impassable limit had not been assigned to it by the Creator, what would prevent it from setting on fire and consuming all that is near it, and absorbing all the moisture from existing things? The aerial waters which veil the heavens with vapours that are sent forth by rivers, fountains, marshes, lakes, and seas, prevent the æther from invading and burning up the universe. Thus we see even this sun, in the summer season, dry up in a moment a damp and marshy country, and make it perfectly arid. What has become of all the water? Let these masters of omniscience tell us. Is it not plain to every one that it has risen in vapour, and has been consumed by the heat of the sun? They say, none the less, that even the sun is without heat. What time they lose in words! And see what proof they lean upon to resist what is perfectly plain. Its colour is white, and neither reddish nor yellow. It is not then fiery by nature, and its heat results, they say, from the velocity of its rotation. What do they gain? That the sun does not seem to absorb moisture? I do not, however, reject this statement, although it is false, because it helps my argument. I said that the consumption of heat required this prodigious quantity of water. That the sun owes its heat to its nature, or that heat results from its action, makes no difference, provided that it produces the same effects upon the same matter. If you kindle fire by rubbing two pieces of wood together, or if you light them by holding them to a flame, you will have absolutely the same effect. Besides, we see that the great wisdom of Him who governs all, makes the sun travel from one region to another, for fear that, if it remained always in the same place, its excessive heat would destroy the order of the universe. Now it passes into southern regions about the time of the winter solstice, now it returns to the sign of the equinox; from thence it betakes itself to northern regions during the summer solstice, and keeps up by this imperceptible passage a pleasant temperature throughout all the world.
Let the learned people see if they do not disagree among themselves. The water which the sun consumes is, they say, what prevents the sea from rising and flooding the rivers; the warmth of the sun leaves behind the salts and the bitterness of the waters, and absorbs from them the pure and drinkable particles, thanks to the singular virtue of this planet in attracting all that is light and in allowing to fall, like mud and sediment, all which is thick and earthy. From thence come the bitterness, the salt taste and the power of withering and drying up which are characteristic of the sea. While as is notorious, they hold these views, they shift their ground and say that moisture cannot be lessened by the sun.
Cyril of JerusalemAD 386
Catechetical Lecture 9:5
For what fault have they to find with the vast creation of God, who out of the fluid nature of the waters formed the stable substance of the heavens? For God said, “Let there be a firmament in the midst of the waters.” God spoke once for all, and it stands fast, never failing.
BedeAD 735
Commentary on Genesis (Hexaemeron)
God also said: Let there be a firmament in the midst of the waters, and let it divide the waters from the waters. And God made the firmament, and divided the waters which were under the firmament from those which were above the firmament. And it was so. And God called the firmament Heaven, and the evening and the morning were the second day. Here the creation of our heaven, in which the stars are fixed, is described; that it is established firm in the midst of the waters. For we see that waters are underneath it, and above the air and the earth; but we are taught not only by the authority of this Scripture but also by the words of the prophet, who says: Stretching out the heaven like a tent curtain, who covers its higher parts with waters (Psalm 104:2). Therefore, it is established that the starry heaven is firm in the midst of the waters, and nothing prevents believing that it was made out of the waters; for we know how strong, transparent, and pure the crystal stone is, which is certainly generated from the condensation of water, what hinders us from believing that the same disposer of natures solidified the substance of the waters in the firmament of heaven? If someone is moved by how waters, which naturally always flow and fall to the lowest place, can stand above the round heaven, let him remember the Scripture saying about God: Who binds the waters in his clouds, that they do not burst out together downward (Job 26:8); and understand that He who binds the waters below the heaven temporarily as He wills, so that they do not fall all together, not supported by a stronger material foundation, but only retained by the vapors of the clouds, He could also suspend the waters above the round sphere of the heaven, so that they never fall down, not by a vaporous thinness, but by an icy solidity. But even if He wanted to hold liquid waters there, is this greater a miracle than what Scripture says that He hangs the earth itself on nothing? For when the waves of the Red Sea or the river Jordan were set up like walls for the passing of the Israelite people, do they not give evident evidence that waters could stand fixed even above the revolving round heaven? Certainly, what kind of waters they are there, or for what purpose they are reserved, the Creator Himself knows; only it should not be doubted that there are waters there because the holy Scripture says so. But what it is to say of God "let this or that creature be made" has been said above. For He said that it should be made, since He arranged everything to be created in His co-eternal Word, that is, His only-begotten Son. Therefore, when we hear: God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters, let us understand that it was in the Word of God to be made, in which whatever God did out of time He foresaw would be made within the Word before all time. But when we hear: And God made the firmament, and divided the waters which were under the firmament from those which were above the firmament, and it was so, let us understand that the creation and disposition of the heaven and waters did not exceed the limits prescribed in the Word of God, according to that of the Psalmist: He gave a commandment, and it shall not pass away (Psalm 148:6). This is to be understood equally about the creatures that are said to be made in the following four days. And when we hear added: And God saw that it was good, let us understand that in the goodness of His Spirit, it pleased Him not as if it was known after it was made but rather in that goodness it pleased Him that it should remain, where it pleased Him it should be made. For it is to be noted that the addition of this word in this place is not found in the Hebrew truth. And it is surprising why among all the things that are read to have been created by God, only in the works of the second day, the approbation of the divine vision is not added, which, however, itself along with the others that God made are shown to have been good when it is said afterward: And God saw all things that He had made, and they were very good, unless perhaps, as some of the Fathers expound, the Scripture wanted to make us understand that the double number, which divides from unity and prefigures the covenants of marriage, is not good; whence also all the animals entering two by two into Noah's ark turn out to be unclean, and an odd number is shown to be clean. Concerning what has been so far expounded, that is, about the creation of the first and second day, the holy Clement thus reports to have spoken by the apostle Peter: "In the beginning, when God made the heaven and the earth, like one house, and the very bodies of the world cast a shadow of those that were enclosed within, they issued darkness from themselves. But when the will of God introduced light, those shadows of the bodies were immediately devoured by light; then the light is assigned to the day, the darkness to the night. Now, the water which was inside the world in the middle of that first heaven and earth, as if congealed by cold, and solidified like crystal, is stretched out, and by such a firmament, the spaces between heaven and earth are as if shut in, and the Creator called that firmament heaven, named by the word of the ancient heaven, and thus divided the whole fabric of the world, when it was one house, into two regions. The cause of this division was that the upper region might serve as a habitation for angels and the lower for men." (Recognition of St. Clement, book I, chapter 27). I have chosen to insert these few things into our work so that the reader may see how much this agrees with the sense of the Fathers.
Thomas AquinasAD 1274
A firmament: Strabus and Bede teach that there is an eternal heaven, because the firmament, which they take to mean the sidereal heaven, is said to have been made, not in the beginning, but on the second day: whereas the reason given by Basil is that otherwise God would seem to have made darkness His first work. Augustine says (Gen. ad lit. i, 9) that the heaven of the second day is the corporeal heaven. According to Damascene (De Fide Orth. ii) the firmament made on the second day is the starry heaven. Chrysostom understood that the heaven in 1:1 is the same heaven of the second day.
Divide the waters from the waters: Whether, then, we understand by the firmament the starry heaven, or the cloudy region of the air, it is true to say that it divides the waters from the waters, according as we take water to denote formless matter, or any kind of transparent body, as fittingly designated under the name of waters. For the starry heaven divides the lower transparent bodies from the higher, and the cloudy region divides that higher part of the air, where the rain and similar things are generated, from the lower part, which is connected with the water and included under that name.
Source: Quotations drawn from early Church Fathers and historical Christian theologians (AD 100–1500). Some quotes address the surrounding passage context rather than this verse alone.
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