Gaius Marius Victorinus : The metaphor of inheritance refers to receiving eternal life. But how does this come about? By faith in Jesus Christ, when we believe in him, that he is the Son of God and that he himself saves us and that he has accomplished every mystery on our behalf. All these things are reported in the gospel. But what should be noticed here is that, while Paul is stating this fact, he addresses it to their persons, offering incentives to persuade them more readily. "You all," he says, "are sons of God." Before, he had said, "We are under a custodian." Now as it were he names them anew, saying "You are sons of God"—but sons from faith in Christ Jesus. — EPISTLE TO THE Galatians 2.3.25-26 Oecumenius : — [CHRYSOSTOM] "through faith in Christ Jesus." Through the faith in Christ Jesus. For such is the construction. See also earlier, when he says "sons of Abraham," now he calls them "sons of God." — Commentary on Galatians Tertullian : What I say, then, is this, that that God is the object of faith who prefigured the grace of faith. But when he also adds, ".For ye are all the children of faith," it becomes dear that what the heretic's industry erased was the mention of Abraham's name; for by faith the apostle declares us to be "children of Abraham," and after mentioning him he expressly called us "children of faith" also. — Against Marcion Book V Theodoret of Cyrus : He has illustrated the perfection of believers. For what is more perfect than to be called sons of God? — EPISTLE TO THE Galatians 3.26