After these things, Jesus came with his disciples into the land of Judea. He stayed there with them, and baptized.
He tarried with them and baptized ...  It must be assumed that Jesus took up the work of carrying forward God's work already being evident in the labors of John the Baptist, and that the baptism administered by Jesus (through his disciples) was God's baptism exactly like that of the great herald.  It must not be thought that Jesus, in any sense, was here working under the administration of John the Baptist.  John was a servant carrying out God's orders; and Jesus was a Son doing the same thing; but in order not to mislead anyone, Jesus refrained from administering God's baptism personally, doing so only through his disciples.