Catena Aurea on Matthew 3:11–12: Augustine of Hippo

Or, he baptizes, because it behoved Christ to be baptized. But if indeed John was sent only to baptize Christ, why was not He alone baptized by John? Because had the Lord alone been baptized by John, there would not have lacked who should insist that John’s baptism was greater than Christ’s, inasmuch as Christ alone had the merit to be baptized by it.