Augustine of Hippo : He says "adoption" so that we may clearly understand that the Son of God is unique. For we are sons of God through his generosity and the condescension of his mercy, whereas he is Son by nature, sharing the same divinity with the Father. — EPISTLE TO THE Galatians 30 [1B.4.4-5] Gaius Marius Victorinus : Since the law by its precepts held people bound, as it were, only to decency of life but not to the hope of deliverance and eternity, God sent his own Son. He sent him subject to the law, that is, the law of Israel, that he might redeem those who were there and lived under the law. Now this is a great thing, that he says [Christ came] not merely to show them the way of life or to stir them up toward eternity with harsh commands but to redeem them. This is the mystery of what he performed, the redemption of all who believed in him, that they might become sons by adoption. When, therefore, such a great benefit came from Christ, nothing was to be added beside this. The law was no longer a matter of servitude. — EPISTLE TO THE Galatians 2.4.5 Jerome : Someone might raise the problem: "If then he was made subject to the law to redeem those who were subject to the law … if he himself was not made also outside the law, he did not redeem those who had not been subject to the law." Another, however, will scrutinize the word redeemed more closely and will say that by the "redeemed" are meant those who were once of God's party and later ceased to be so, whereas those who were not subject to the law were not so much redeemed as purchased. — EPISTLE TO THE Galatians 2.4.4 Oecumenius : "so that we might receive adoption as sons." For he not only freed us from evil, having removed the curse of the law, but also bestowed adoption. And by saying "we might receive" he showed it to be appointed from above, and that we are not able to receive it because of the childishness of our understanding. — Commentary on Galatians Tertullian : But as for that idle god, who has neither any work nor any prophecy, nor accordingly any time, to show for himself, what has he ever done to bring about the fulness of time, or to wait patiently its completion? If nothing, what an impotent state to have to wait for the Creator's time, in servility to the Creator! But for what end did He send His Son? "To redeem them that were under the law," in other words, to "make the crooked ways straight, and the rough places smooth," as Isaiah says -in order that old things might pass away, and a new course begin, even "the new law out of Zion, and the word of the Lord from Jerusalem," and "that we might receive the adoption of sons," that is, the Gentiles, who once were not sons. — Against Marcion Book V