Pseudo-Chrysostom
Catena Aurea · Matthäusevangelium 3
And Jesus, when He was baptized, went up straightway 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.
The Holy Ghost took the likeness of a dove, as being more than other animals susceptible of love. All other forms of righteousness which the servants of God have in truth and verity, the servants of the Devil have in spurious imitation; the love of the Holy Spirit alone an unclean spirit cannot imitate. And the Holy Ghost has therefore reserved to Himself this special manifestation of love, because by no testimony is it so clearly seen where He dwells as by the grace of love.