After these things came Jesus and his disciples into the land of Judea; and there he tarried with them, and baptized.
All Commentaries on John 3:22 Go To John 3
Augustine of Hippo
Our Lord did not baptize with the baptism wherewith He had been baptized; for He was baptized by aservant, as a lesson of humility to us, and in order to bring us to the Lord’s baptism, i.e. His own; for Jesus baptized, as the Lord, the Son of God.
But why did John baptize? .
Because it was necessary that our Lord should be baptized.
The Jews then asserted Christ to be the greater person, and His baptism necessary to be received. But John's disciples did not understand so much, and defended John’s baptism. At last they cometo John, to solve the question: And they came unto John, and said to him, Rabbi, He that was with you beyond Jordan, behold, the Same baptizes.