Galatians 3:12

ὁ δὲ νόμος. In contrast to the effect of faith just mentioned.

οὐκ ἔστιν ἐκ πίστεως. The Law has not faith, as the fundamental principle, or basis, of its existence. The phrase is even stronger than Theodoret’s words imply: ὁ νόμος οὐ πίστιν ζητεῖ, ἀλλὰ πρᾶξιν�, καὶ τοῖς φυλάττονσιν τὴν ζωὴν ἐπαγγέλλεται.

ἀλλʼ Ὁποιήσας αὐτὰ ζήσεται ἐν αὐτοῖς. From Leviticus 18:5, a free rendering of the Hebrew; see also Ezekiel 20:11. St Paul has the same quotation in Romans 10:5, in a slightly different form. The promise in Leviticus and Ezekiel is that in performance lies life. But what if, as is the case, performance is more than we can accomplish? “We must find our refuge in God Himself, i.e. leave the Law for Faith.