Luke 1:64

(Orat. vi.) The birth of John then broke the silence of Zacharias, as it follows, And his mouth was opened. For it were unreasonable when the voice of the Word had come forth, that his father should remain speechless.

Rightly also, from that moment was his tongue loosed, for that which unbelief had bound, faith set free. Let us then also believe, in order that our tongue, which has been bound by the chains of unbelief, may be loosed by the voice of reason. Let us write mysteries by the Spirit if we wish to speak. Let us write the forerunner of Christ, not on tables of stone, but on the fleshly tablets of the heart. For he who names John, prophesies Christ. For it follows, And he spake, giving thanks.

Now in an allegory, the celebration of John's birth was the beginning of the grace of the New Covenant. His neighbours and kinsfolk had rather give him the name of his father than that of John. For the Jews, who by the observance of the Law were united to him as it were by ties of kindred, chose rather to follow the righteousness which is of the Law, than receive the grace of faith. But the name of John, (i. e. the grace of God,) his mother in word, his father in writing, suffice to announce, for both the Law itself as well as the Psalms and the Prophecies, in the plainest language foretel the grace of Christ; and that ancient priesthood, by the foreshadowing of its ceremonies and sacrifices, bears testimony to the same. And well doth Zacharias speak on the eighth day of the birth of his child, for by the resurrection of the Lord, which took place on the eighth day, i. e. the day after the sabbath, (septimam sabbati.) the hidden secrets of the legal priesthood were revealed.