And Jesus, when he was baptized, went up immediately out of the water: and, lo, the heavens were opened unto him, and he saw the Spirit of God descending like a dove, and lighting upon him:
All Commentaries on Matthew 3:16 Go To Matthew 3
Jerome
AD 420
Not by an actual cleaving of the visible element, but to the spiritual eye, as Ezekiel also in the beginning of his book relates that he saw them.
It sat on the head of Jesus, that none might suppose the voice of the Father spoken to John, and not to the Lord.