John Chrysostom

The Law then, as it was our tutor, and we were kept shut up under it, is not the adversary but the fellow-worker of grace; but if when grace is come, it continues to hold us down, it becomes an adversary; for if it confines those who ought to go forward to grace, then it is the destruction of our salvation. If a candle which gave light by night, kept us, when it became day, from the sun, it would not only not benefit, it would injure us; and so doth the Law, if it stands between us and greater benefits. …

Homily on Galatians 3 ↗

Theophylact of Ohrid

With the coming of faith, which makes one a "perfect man," we, he says, can no longer be under the guidance of a tutor, as having become perfect through it and having outgrown childhood. Therefore it would be strange for those who have become men to submit to the guidance of the law, just as it would be to use a lamp when day has come and the sun is shining.

Commentary on Galatians ↗

Oecumenius

"But when faith came." Therefore, then, the perfection and the adoption as sons being given. "we were no longer under a guardian." For being children, it was necessary to act under a guardian, although not having become fully grown. "Proof of perfection, to be made sons to God."

Commentary on Galatians ↗

Thomas Aquinas

And although the Law was our pedagogue, it did not bring us the full inheritance, because as is said in Hebrews (7:19): "The law brought nothing to perfection." But the Law's function ended after faith came. Hence he says, "But, after the faith is come," namely, of Christ, "we are no longer under a pedagogue," i.e., under constraint, which is not necessary for those who are free: "When I was a child, I spoke as a child, I understood as a child, I thought as a child, but when I became a man I put away the things of a child" (1 Cor …

Commentary on Galatians ↗