Augustine of Hippo
Catena Aurea · Lukasevangelium 3
Now when all the people were baptized, it came to pass, that Jesus also being baptized, and praying, the heaven was opened, And the Holy Ghost descended in a bodily shape like a dove upon him, and a voice came from heaven, which said, Thou art my beloved Son; in thee I am well pleased.
But it is most strange that He should receive the Spirit when He was thirty years old. But as without sin He came to baptism, so not without the Holy Spirit. For if it was written of John, He shall be filled with the Spirit from his mother’s womb, (Luke 1:15.) what must we believe of the man Christ, the very conception of whose flesh was not carnal but spiritual. Therefore He condescended now to prefigure His body, i. e. the Church, in which the baptized especially receive the Holy Spirit.