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“"The old things you shall cast away, when the new ones come upon them" (Leviticus 26:10). These words fit the present epistle, in which the Apostle rebukes the Galatians, who had been seduced by a false apostle to such an extent that they observed the legal precepts together with the Gospel at the same time. The Apostle reproaches them for this in the words set down above, saying: "The old things you shall cast away, when the new ones come upon them." In these words the Lord points to a fourfold oldness. The first oldness is that of error, concerning which Isaiah 26:3 says: "The old error has departed." And this is removed through the newness of the doctrine of Christ. Mark 1:27: "What is this new doctrine?" The second oldness is that of figure, concerning which Hebrews 8:8 says: "I will perfect a new testament over the house of David, and over Judah, not according to the testament that I made with their fathers." In this he shows first that the first testament was old, and that it is renewed through the newness of grace, that is, of the presence of the truth of Christ. Jeremiah 31:22: "The Lord will make a new thing upon the earth," and so on. The third is the oldness of guilt, concerning which Psalm 31:3 says: "Because I was silent" — that is, in confessing my sins — "they grew old," and so on. And this is renewed through the newness of righteousness. Romans 6:4: "Let us walk in newness of life," and so on. The fourth is the oldness of punishment. Lamentations 3:4: "I have made my skin old." And this will be renewed through the newness of glory, concerning which newness Isaiah, the last chapter, says: "Behold, I create a new heaven," etc.; Apocalypse 21:21: "He who sat upon the throne said: Behold, I make all things new."”
Prologue to the Commentary on Galatians
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