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Commentary

Isaiah 1:15

And when ye spread forth your hands, I will hide mine eyes from you: yea, when ye make many prayers, I will not hear: your hands are full of blood.

O foolish and wretched person, what are you doing? Why do you burden yourself with the weight of greater sins? Why do you inflict injury on God in addition to your contempt? Why, in order to provoke his wrath more quickly in manifestation of your punishment, do you extend to God your crime stained hands when he who has commanded that only holy and unspotted hands be lifted up to him refuses to look at yours? Why do you beseech God with that mouth by which not long ago you spoke evil? Its prayers, however they be multiplied, are an abomination to him.

ON THE CHRISTIAN LIFE 11

Isaiah 1:16 · 2 passages

Wash you, make you clean; put away the evil of your doings from before mine eyes; cease to do evil;

He [the one who is fasting] will wash his face, that is, cleanse his heart, with which he will see God, no veil being interposed on account of the infirmity contracted from squalor; but being firm and steadfast, inasmuch as he is pure and guileless.… From the squalor, therefore, by which the eye of God is offended, our face is to be washed.
So present yourself to such a head as a body worthy of him, to such a bridegroom as a worthy bride.… This is the bride of Christ, without stain or wrinkle. Do you wish to have no stain? Do what is written.… Do you wish to have no wrinkle? Stretch yourself on the cross. You see, you do not only need to be washed but also to be stretched, in order to be without stain or wrinkle; because by the washing sins are removed, while by the stretching a desire is created for the future life, which is what Christ was crucified for.
Isaiah 1:18 · 2 passages

Come now, and let us reason together, saith the LORD: though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool.

What is surprising about white garments symbolizing the church?
Humankind has need of God’s grace not only to be made just when they are wicked, when they are changed, that is, from wicked to just, and when they are given good in return for evil, but grace must accompany them, and they must lean on it in order not to fall. This is why it is written of the church in the Song of Songs: “Who is this that comes up clad in white, leaning upon her kinsman?” For she who could not do this of herself has been made white. And who has made her white but him who says by the prophet, “If your sins be as scarlet, they shall be made white as snow”? She was not gaining any good merit then at the time she was made white. But now that she has been made white, she walks aright, provided only that she continues to lean upon him who made her white. Accordingly, Jesus himself, upon whom the church leans, now that she has been made white, said to his disciples, “Without me you can do nothing.”

ON GRACE AND FREE WILL 6

Isaiah 2:2 · 2 passages

And it shall come to pass in the last days, that the mountain of the LORD'S house shall be established in the top of the mountains, and shall be exalted above the hills; and all nations shall flow unto it.

The central place they are all coming to is Christ; he is at the center, because he is equally related to all; anything placed in the center is common to all.…Approach the mountain, climb up the mountain, and you that climb it, do not go down it. There you will be safe, there you will be protected; Christ is your mountain of refuge. And where is Christ? At the right hand of the Father, since he has ascended into heaven.
It talks of a mountain, and the mountain is veiled to the party of Donatus. …The holy Daniel saw a vision and wrote down what he saw, and he said that he had seen a stone hewn out of a mountain without hands. It is Christ, coming from the nation of the Jews, which was also a mountain, you see, because it has the kingdom.…
What is the mountain over which the heretics stumbled? Listen to Daniel again: “And that stone grew and became a great mountain, such that it filled all the face of the earth.” How right the psalm is to say to Christ the Lord as he rises again, “Be exalted over the heavens, O God, and let your glory be over the whole earth.” What is your glory over the whole earth? Over the whole earth your church, over the whole earth your bride.
Isaiah 2:3

And many people shall go and say, Come ye, and let us go up to the mountain of the LORD, to the house of the God of Jacob; and he will teach us of his ways, and we will walk in his paths: for out of Zion shall go forth the law, and the word of the LORD from Jerusalem.

The first law, the Old Testament, had come out of Mount Sinai by the lips of Moses; but it was foretold of the law Christ came to give: “The law shall come forth from Zion, and the word of the Lord from Jerusalem.” This explains why Christ ordered repentance to be preached in his name among all peoples but beginning in Jerusalem.
Isaiah 2:5-6 · 2 passages

O house of Jacob, come ye, and let us walk in the light of the LORD.

What did the prophet Isaiah mean when he announced that a mountain would be prepared on the summits of the mountains, to which all peoples were going to come? The law and the Word of God was going to proceed from Zion and Jerusalem to all nations, not from Mount Sinai to one nation. This we see most evidently fulfilled in Christ and the Christians. A little later the prophet says, “O house of Jacob, come and let us walk in the light of the Lord.” Here, you [the Jews] will surely say your usual piece: “We are the house of Jacob,” but listen a moment to what follows, and when you have said what you want to say, hear what you do not want to hear. The prophet continues, “For he has cast off his people, the house of Israel.” Here say, “We are the house of Israel”; here acknowledge yourselves and forgive us for reminding you of these facts.

IN ANSWER TO THE JEWS 8

Dearly beloved, whether the Jews receive these divine testimonies with joy or with indignation, nevertheless, when we can, let us proclaim them with great love for the Jews. Let us not proudly glory against the broken branches; let us rather reflect by whose grace it is, and by much mercy, and on what root, we have been grafted into.

IN ANSWER TO THE JEWS 10

Isaiah 3:14 · 2 passages

The LORD will enter into judgment with the ancients of his people, and the princes thereof: for ye have eaten up the vineyard; the spoil of the poor is in your houses.

For not alone he shall come to judgment but with the elders of his people, to whom he has promised that they shall sit upon thrones to judge, who even shall judge angels. These are the clouds Isaiah is speaking of.

EXPLANATIONS OF THE PSALMS 68 (67).39

Therefore, coming with all angels, together with him he shall have the saints also. For plainly says Isaiah also, “He shall come to judgment with the elders of the people.” Those “elders of the people,” then, those called “angels” in this passage, those thousands of many people made perfect coming from the whole world, are called “heaven.”

EXPLANATIONS OF THE PSALMS 50 (49).11

Isaiah 5:2

And he fenced it, and gathered out the stones thereof, and planted it with the choicest vine, and built a tower in the midst of it, and also made a winepress therein: and he looked that it should bring forth grapes, and it brought forth wild grapes.

So let me warn you, holy seedlings, let me warn you, fresh plants in the field of the Lord, not to have it said of you what was said of the vineyard of the house of Israel: "I expected it to produce grapes, but it produced thorns." Let the Lord find good bunches of grapes on you, seeing that he was himself a bunch of grapes trodden in the winepress for you. Produce grapes, live good lives.
Isaiah 5:18

Woe unto them that draw iniquity with cords of vanity, and sin as it were with a cart rope:

For each and every person braids a rope for himself in his sins.… Who makes the rope long? Who adds sin to sin? How are sins added to sins? When the sins that have been committed are combined with other sins. He committed a theft; that no one may find out that he committed it, he seeks out an astrologer. It would be enough to have committed the theft; why do you want to join a sin to a sin? Look, two sins. When you are prevented from approaching the astrologer, you blaspheme the bishop. Look, three sins. When you hear, “Send him outside the church,” you say, “I’m taking myself to Donatus’s group.” Look, you add a fourth sin.

TRACTATES ON THE GOSPEL OF JOHN 10:5

Isaiah 5:20

Woe unto them that call evil good, and good evil; that put darkness for light, and light for darkness; that put bitter for sweet, and sweet for bitter!

“Woe unto them that call evil good.” For this text is to be understood to refer not to humans but to those things that make humans evil, and the prophet’s accusation is rightly applied to one who calls adultery good. But if someone should call another good whom he believes chaste, not knowing that he is an adulterer, he is deceived not in his understanding of good and evil but through the secrets of human conduct. He is calling a person good whom he believes to possess that which indubitably is good. The adulterer he would call evil, the chaste person good, and he calls the person in question good simply through not knowing that he is an adulterer and not chaste.
Isaiah 6:3

And one cried unto another, and said, Holy, holy, holy, is the LORD of hosts: the whole earth is full of his glory.

What are we going to do there? Tell me. Sleep? Yes, here people who have nothing to do just sleep. But there is no sleep there, because there is no weariness. So we aren’t going to perform works of necessity, aren’t going to sleep—what are we going to do? None of us must be afraid of boredom; none of us must imagine it’s going to be so boring there. Do you find it boring now to be well? You can get tired of anything and everything in this age; can you get tired of being well? If you don’t get tired of good health, will you get tired of immortality? So what activity are we going to engage in? “Amen” and “Alleluia.” Here, you see, we do one thing and another, there one thing, I don’t say day and night but day without end; what the powers of heaven, the seraphim, say now without ever getting bored: “Holy, holy, holy, Lord God of hosts.”
Isaiah 6:10

Make the heart of this people fat, and make their ears heavy, and shut their eyes; lest they see with their eyes, and hear with their ears, and understand with their heart, and convert, and be healed.

Behold mercy and judgment: mercy upon the elect, who have obtained the justice of God, but judgment upon the others who have been blinded. And yet the former have believed, because they have willed, while the latter have not believed, because they have not willed. Hence mercy and judgment were brought about in their own wills. Clearly this election is through grace, not at all through merits.

PREDESTINATION OF THE SAINTS 6

Isaiah 7:9 · 3 passages

And the head of Ephraim is Samaria, and the head of Samaria is Remaliah's son. If ye will not believe, surely ye shall not be established.

“Unless you believe, you shall not understand,” showing that as righteousness is by faith, understanding comes by wisdom. Accordingly, in the case of those who eagerly demand evident truth, we must not condemn the desire but regulate it, so that beginning with faith it may proceed to the desired end through good works.

REPLY TO FAUSTUS THE MANICHAEAN 22:53

So, then, in some points that bear on the doctrine of salvation, which we are not yet able to grasp by reason—but we shall be able to sometime—let faith precede reason, and let the heart be cleansed by faith so as to receive and bear the great light of reason; this is indeed reasonable. Therefore the prophet said with reason: “If you will not believe, you will not understand”; thereby he undoubtedly made a distinction between these two things and advised us to believe first so as to be able to understand whatever we believe. It is, then, a reasonable requirement that faith precede reason, for, if this requirement is not reasonable, then it is contrary to reason, which God forbid. But, if it is reasonable that faith precede a certain great reason that cannot yet be grasped, there is no doubt that, however slight the reason which proves this, it does precede faith.
The mysteries and secrets of the kingdom of God first seek for believing people, that they may make them understanding. For faith is understanding’s step, and understanding faith’s attainment. This the prophet expressly says to all who prematurely and in undue order look for understanding and neglect faith.

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