Lactantius

“ This is the circumcision of the heart of which the prophets speak, which God transferred from the mortal flesh to the soul, which alone is about to endure. For being desirous of promoting our life and salvation in accordance with His own goodness, in that circumcision He hath set before us repentance, that if we lay open our hearts,—that is if we confess our sins and make satisfaction to God,—we shall obtain pardon, which is denied to those who are obstinate and conceal their faults, by Him who regards not the outward appearance, as man does, but the innermost secrets of the heart. ”

“ But even Moses himself, by whom the law was given which they so tenaciously maintain, though they have fallen away from God, and have not acknowledged God, had foretold that it would come to pass that a very great prophet would be sent by God, who should be above the law, and be a bearer of the will of God to men. ”

“ And for this reason he was also successor to Moses, to show that the new law given by Christ Jesus was about to succeed to the old law which was given by Moses. For that circumcision of the flesh is plainly irrational; since, if God had so willed it, He might so have formed man from the beginning, that he should be without a foreskin. ”