John Chrysostom

Perhaps he had informed them of it by some persons, or had not long before been writing to them. Here he is pointing out that the whole is of God, that we have contributed nothing. For what? I ask, was not Paul himself, the wonderful, he that was so versed in the law, he that was brought up at the feet of Gamaliel according to the most perfect manner, was not he saved by grace? With good reason too does he call this a mystery, for a mystery it is, to raise the Gentiles in a moment to a higher rank than the Jews. "As I wrote afore," saith he, "in few words," i.e., briefly.