Luke 1:59

The holy Evangelist has especially remarked, that many thought the child should be called after his father Zacharias, in order that we might understand, not that any name of his kinsfolk was displeasing to his mother, but that the same word had been communicated to her by the Holy Spirit, which had been foretold by the Angel to Zacharias. And in truth, being dumb, Zacharias was unable to mention his son's name to his wife, but Elisabeth obtained by prophecy what she had not learnt from her husband. Hence it follows, And she answered, &c. Marvel not that the woman pronounced the name which she had never heard, seeing the Holy Spirit who imparted it to the Angel revealed it to her; nor could she be ignorant of the forerunner of the Lord, who had prophesied of Christ. And it well follows, And they said unto her, &c. that you might consider that the name belongs not to the family, but to the Prophet.

(in Gen. Hom. 39.) The rite of circumcision was first delivered to Abraham as a sign of distinction, that the race of the Patriarch might be preserved in unmixed purity, and so might be able to obtain the promises. But now that the promise of the covenant is fulfilled, the sign attached to it is removed. So then through Christ circumcision ceased, and baptism came in its place; but first it was right that John should be circumcised; as it is said, And it came to pass, that on the eighth day, &c. For the Lord had said, Let the child of eight days be circumcised among you. (Gen. 17:13.) But this measurement of time I conceive was ordered by Divine mercy for two reasons. First, because in its most tender years the child the more easily bears the cutting of the flesh. Secondly, that from the very operation itself we might be reminded that it was done for a sign; for the young child scarcely distinguishes any of the things that are around him. But after the circumcision, the name was conferred, as it follows, And they called him. But this was done because we must first receive the seal of the Lord, then the name of man. Or, because no man except he first cast aside his fleshly lusts, which circumcision signifies, is worthy to have his name written in the book of life.

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.