“And his mouth was opened immediately, and his tongue loosed, and he spake, and praised God.”
Luke 1:64 — Greek Interlinear
Church Fathers on Luke 1:64
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,…
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…
Zacharias is by interpretation “remembering God,” but John signifies “pointing to.” Now “memory” relates to something absent, “pointing to,” to something present. But John was not about to set forth the memory of God as absent, but with his finger to point him out as present, saying, Behold the Lamb of God.