Augustine of Hippo
Catena Aurea · Johannesevangelium 1
The next day John seeth Jesus coming to him, and saith, Behold the Lamb of God, which taketh away the sin of the world. This is he of whom I said, After me cometh a man which is preferred before me: for he was before me. And I knew him not: but that he should be made manifest to Israel, therefore am I come baptizing with water.
(Tr. iv. c. 12, 13) Now when our Lord became known, it was unnecessary to prepare a way for Him; for to those who knew Him, He became His own way. And therefore John’s baptism did not last long, but only so long as to shew our Lord’s humility. (Tr. v. c. 5.). Our Lord received baptism from a servant, in order to give us such a lesson of humility as might prepare us for receiving the grace of baptism. And that the servant’s baptism might not be set before the Lord’s, others were baptized with it; who after receiving it, had to receive our Lord’s baptism: whereas those who first received our Lord’s baptism, did not receive the servant’s after.