But after that faith is come ( ἐλθούσης δὲ τῆς πίστεως); but now that Faith hath come; this white-robed, joy-bringing angel of deliverance! (see note on the words, in Galatians 3:23, "before faith came").
We are no longer under a schoolmaster ( οὐκέτι ὐπὸ παιδαγωγόν ἐσμεν); we are no longer under a keeper of our childhood. When a child becomes of age, as determined by his father's arrangement, the paedagogus's function, of course, ceases; so also when we(God's collective people)became believers in Christ, we had reached the era appointed by our Father for our coming of age, and the Law lost all hold upon us.
This triumphant conclusion is based upon the premiss that the Law was the paedagogus of God's people, and nothing more. This premiss is itself proved true to the apostle's conviction, by the very nature of the case.