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Commentary on Genesis 1 verses 14–19
This is the history of the fourth day's work, the creating of the sun, moon, and stars, which are here accounted for, not as they are in themselves and in their own nature, to satisfy the curious, but as they are in relation to this earth, to which they serve as lights; and this is enough to furnish us with matter for praise and thanksgiving. Holy Job mentions this as an instance of the glorious power of God, that by the Spirit he hath garnished the heavens (Job 26:13); and here we have an account of that garniture which is not only so much the beauty of the upper world, but so much the blessing of this lower; for though heaven is high, yet has it respect to this earth, and therefore should have respect from it. Of the creation of the lights of heaven we have an account,
I. In general, Gen 1:14, Gen 1:15, where we have 1. The command given concerning them: Let there be lights in the firmament of heaven. God had said, Let there be light (Gen 1:3), and there was light; but this was, as it were, a chaos of light, scattered and confused: now it was collected and modelled, and made into several luminaries, and so rendered both more glorious and more serviceable. God is the God of order, and not of confusion; and, as he is light, so he is the Father and former of lights. Those lights were to be in the firmament of heaven, that vast expanse which encloses the earth, and is conspicuous to all; for no man, when he has lighted a candle, puts it under a bushel, but on a candlestick (Luk 8:16), and a stately golden candlestick the firmament of heaven is, from which these candles give light to all that are in the house. The firmament itself is spoken of as having a brightness of its own (Dan 12:3), but this was not sufficient to give light to the earth; and perhaps for this reason it is not expressly said of the second day's work, in which the firmament was made, that it was good, because, till it was adorned with these lights on the fourth day, it had not become serviceable to man. 2. The use they were intended to be of to this earth. (1.) They must be for the distinction of times, of day and night, summer and winter, which are interchanged by the motion of the sun, whose rising makes day, his setting night, his approach towards our tropic summer, his recess to the other winter: and thus, under the sun, there is a season to every purpose, Ecc 3:1. (2.) They must be for the direction of actions. They are for signs of the change of weather, that the husbandman may order his affairs with discretion, foreseeing, by the face of the sky, when second causes have begun to work, whether it will be fair or foul, Mat 16:2, Mat 16:3. They do also give light upon the earth, that we may walk (Joh 11:9), and work (Joh 9:4), according as the duty of every day requires. The lights of heaven do not shine for themselves, nor for the world of spirits above, who need them not; but they shine for us, for our pleasure and advantage. Lord, what is man, that he should be thus regarded! Psa 8:3, Psa 8:4. How ungrateful and inexcusable are we, if, when God has set up these lights for us to work by, we sleep, or play, or trifle away the time of business, and neglect the great work we were sent into the world about! The lights of heaven are made to serve us, and they do it faithfully, and shine in their season, without fail: but we are set as lights in this world to serve God; and do we in like manner answer the end of our creation? No, we do not, our light does not shine before God as his lights shine before us, Mat 5:14. We burn our Master's candles, but do not mind our Master's work.
II. In particular, Gen 1:16-18.
1.Observe, The lights of heaven are the sun, moon, and stars; and all these are the work of God's hands. (1.) The sun is the greatest light of all, more than a million times greater than the earth, and the most glorious and useful of all the lamps of heaven, a noble instance of the Creator's wisdom, power, and goodness, and an invaluable blessing to the creatures of this lower world. Let us learn from Psa 19:1-6 how to give unto God the glory due unto his name, as the Maker of the sun. (2.) The moon is a less light, and yet is here reckoned one of the greater lights, because though, in regard to its magnitude and borrowed light, it is inferior to many of the stars, yet, by virtue of its office, as ruler of the night, and in respect of its usefulness to the earth, it is more excellent than they. Those are most valuable that are most serviceable; and those are the greater lights, not that have the best gifts, but that humbly and faithfully do the most good with them. Whosoever will be great among you, let him be your minister, Mat 20:26. (3.) He made the stars also, which are here spoken of as they appear to vulgar eyes, without distinguishing between the planets and the fixed stars, or accounting for their number, nature, place, magnitude, motions, or influences; for the scriptures were written, not to gratify our curiosity and make us astronomers, but to lead us to God, and make us saints. Now these lights are said to rule (Gen 1:16, Gen 1:18); not that they have a supreme dominion, as God has, but they are deputy-governors, rulers under him. Here the less light, the moon, is said to rule the night; but in Psa 136:9 the stars are mentioned as sharers in that government; The moon and stars to rule by night. No more is meant than that they give light, Jer 31:35. The best and most honourable way of ruling is by giving light and doing good: those command respect that live a useful life, and so shine as lights.
2.Learn from all this, (1.) The sin and folly of that ancient idolatry, the worshipping of the sun, moon, and stars, which, some think, took rise, or countenance at least, from some broken traditions in the patriarchal age concerning the rule and dominion of the lights of heaven. But the account here given of them plainly shows that they are both God's creatures and man's servants; and therefore it is both a great affront to God and a great reproach to ourselves to make deities of them and give them divine honours. See Deu 4:19. (2.) The duty and wisdom of daily worshipping that God who made all these things, and made them to be that to us which they are. The revolutions of the day and night oblige us to offer the solemn sacrifice of prayer and praise every morning and evening.
And God saw that it was good. Necessarily, the holy Scripture often finds that God saw that the things He made were good, so that the piety of the faithful might be informed by this; however, it is not for human understanding, which often is offended even by good things whose causes and order it does not know, to judge visible and invisible creation, but rather to believe and yield to the praising God. For the more religiously one has believed in God before knowing, the more easily they will understand something in progressing. Therefore, God saw that the things He made were good, because what pleased Him to be made so that they would be made, pleased Him when made to last, to the extent that the measure of existing or persisting was established for each thing by such a great Creator.
To shine upon the earth, and to rule over the day and the night, and to divide the light and the darkness. These things can be understood both about the great lights and about the stars with this distinction only, that what is said "to rule over the day" refers especially to the sun; what is added "and the night" pertains to the moon and the stars; but what is further stated "and to separate the light from the darkness" applies equally to all the stars, which carry light wherever they move and leave all things dark where they are absent. But if anyone inquires what kind of light could have existed by day before the creation of the stars, it might reasonably be said that it was such as we see every morning, namely, when the rising of the sun is approaching, but it does not yet appear on the lands, when the day indeed shines with the dim rays of the stars but does not yet glow fully until the sun rises. Hence, there could be no distinction of times then except only of day and night, and rightly it was said when the stars were made: "And let them be for signs and for seasons, and for days and years." For the changes of times began to be distinguished from when, on the fourth day of the nascent world, the sun, proceeding from the middle of the east, consecrated the vernal equinox with its rising, and by daily advances climbing to the heights of the sky, and again gradually descending from the solstitial peak to the lower parts, without delay reusing the equinoctial circles from the lower winter places, it completed the space of the year with the four well-known times and definite days. Also, the moon appearing full in the evening, set apart the times to be observed for the celebration of Easter on its first ascent. For that is the hour when not only the ancient people of God but also we today observe the first celebration of Easter, when, after the day of the equinox has passed, the full moon in the evening, that is, the fourteenth day, has appeared in the sky. For just after these things, when the Lord's day has come, the proper time for celebrating the Lord's resurrection will arrive, fulfilling to the letter also the word of the prophet who said: "He made the moon for seasons, the sun knows its setting" (Psalm 104:19). The stars also, apart from what we have mentioned above, because they either by their appearance indicate what the quality of the air will be or by their course show what watch of the night it is; they are for signs and seasons, because those coming into the sky designate summer times, those designate winter. They are also for days, because some accompany the sun in vernal days, others in autumnal. They are also for years, because those that for example now rise in the morning during the vernal equinox, come into the sky at the same equinox in the face of the sky every year; those that now rise in the evening or morning at the solstice, always rise at those times in the same hours. But there are also some stars which the astrologers call planets, that is, wandering stars, which make longer years by their orbit, returning to the same place in the sky. For the star called Saturn is said to return to the same places of the stars in which it was thirty years before, Jupiter in twelve years, Mars in two solar years completing its circuit in the sky, the moon, too, makes a year with twelve of its cycles, that is, of three hundred fifty-four days, and to make its cycle concord with the solar year, every second or third year it adds a thirteenth month, which calculators call the embolismiatic year, and it becomes a year of three hundred eighty-four days.
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SUMMARY
Genesis 1:18 meticulously details God's divine establishment of the celestial bodies created on the fourth day, assigning them the sovereign functions of ruling over day and night and perpetually dividing light from darkness. This verse culminates in God's profound declaration of their inherent goodness, affirming the functional perfection and purposeful design of His ordered creation, which is essential for the flourishing of life on Earth.
CONTEXT
EXPOSITION AND ANALYSIS
Key Word Analysis
Verse Breakdown
Literary Devices
Genesis 1:18 employs several literary devices to convey its profound theological truths. The most prominent is Repetition, particularly the recurring phrase "and God saw that it was good." This refrain, appearing multiple times throughout Genesis 1, serves to emphasize God's constant evaluation and approval of His creation, reinforcing its inherent perfection and functional integrity at each stage. Another device is Merism, seen in the pairing of "day and night" and "light from the darkness." This literary technique uses two contrasting or complementary parts to represent a totality, indicating that the celestial bodies govern and distinguish all periods of time and all states of illumination. Finally, a subtle form of Anthropomorphism is present in the phrase "God saw," attributing a human sensory action to God. This device makes God's evaluation relatable to human understanding, conveying His active engagement and satisfaction with His creative work, rather than implying any limitation on His omniscience.
THEOLOGICAL AND THEMATIC CONNECTIONS
Genesis 1:18 powerfully asserts God's absolute sovereignty over creation, demonstrating that He not only brings things into existence but also meticulously orders them, assigns purpose, and delegates authority. The celestial bodies, far from being deities, are instruments of His will, faithfully executing their divinely appointed roles. This foundational truth counters any notion of an impersonal or chaotic universe, establishing a cosmos that is purposeful, predictable, and perfectly aligned with the Creator's good design. This order provides the necessary stability for life to flourish and points to the reliability of God's character.
REFLECTION AND APPLICATION
Genesis 1:18 invites us to contemplate the profound order, intentionality, and purposeful design embedded within the cosmos, serving as an enduring testament to the wisdom, power, and goodness of our Creator. Just as the sun and moon faithfully execute their divinely appointed roles, establishing the rhythms of day and night, we too are called to live with intentionality, discerning and fulfilling the unique purposes God has ordained for us within His ordered world. This understanding fosters a deep trust in God's reliable character and encourages us to find our place and function within His grand, good design. Recognizing that even the vast celestial bodies operate under God's delegated authority should cultivate humility and awe within us, prompting us to align our lives with His will and to appreciate the consistent, sustaining providence that undergirds all existence. Our lives, like the cosmos, are meant to reflect His goodness and order, contributing to the harmony of His creation.
Questions for Reflection
FAQ
How do the "lights" rule over day and night?
Answer: The "ruling" of the sun and moon in Genesis 1:18 is not an active, conscious governance in the human sense, but a divinely ordained, consistent function. They "rule" by establishing and maintaining the predictable cycles of day and night through their consistent movements and light-giving properties. The greater light (sun) dictates the period of day, and the lesser light (moon) dictates the period of night. Their presence and absence, along with their consistent orbits, define the periods of light and darkness, thus governing the rhythms of life on Earth. This is a delegated authority, reflecting God's ultimate and sovereign control over all creation.
Why is the declaration "it was good" significant here?
Answer: The recurring phrase "it was good" (Hebrew: ṭôwb) signifies far more than mere aesthetic approval; it denotes functional perfection, suitability for purpose, and alignment with God's holy character and design. For the celestial bodies, it means they perfectly fulfill their assigned roles of ruling and dividing light from darkness, establishing a stable and predictable environment for life on Earth. This declaration reinforces the inherent integrity, order, and beneficial nature of God's creation at each stage, setting the theological groundwork for the climactic "very good" at the conclusion of the entire creation week in Genesis 1:31. It assures us that everything God made was fit for its purpose and reflected His perfect wisdom.
CHRIST-CENTERED FULFILLMENT
While Genesis 1:18 describes the physical ordering of the cosmos through the celestial bodies, it profoundly points to Christ as the ultimate source and sustainer of all order and light. He is the "true Light, which gives light to every man coming into the world" (John 1:9), dispelling spiritual darkness and bringing divine order to chaotic human hearts. Just as the sun and moon faithfully execute their delegated rule, Christ, as the Son, perfectly fulfills the Father's will, upholding "all things by the word of His power" (Hebrews 1:3). The cosmic order established in creation foreshadows the new creation in Christ, where He reigns supreme, bringing light, life, and perfect order to those who believe in Him. He is the one in whom "all things were created, in heaven and on earth, visible and invisible, whether thrones or dominions or rulers or authorities—all things were created through him and for him" (Colossians 1:16). Therefore, the "goodness" declared in Genesis 1:18 finds its ultimate and eternal perfection in the person and work of Jesus Christ, who is the light of the world (John 8:12) and the one who brings definitive order to a fallen creation.