
Augustine of Hippo
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.
(App. Serm. 135. 1.) Christ after He had been once born among men, is born a second time in the sacraments, that as we adore Him then born of a pure mother, so we may now receive Him immersed in pure water. His mother brought forth her Son, and is yet virgin; the wave washed Christ, and is holy. Lastly, that Holy Spirit which was present to Him in the womb, now shone round Him in the water, He who then made Mary pure, now sanctifies the waters.