These disciples went to John and said to him, “Rabbi, look, that man who was with you on the east side of the Jordan River [i.e., Jesus], whom you testified about, is immersing people and everyone is going to him.” [Note: Actually, it was Jesus’ disciples who did the immersing. See 4:2].
Then Jesus’ [half-] brothers said to Him, “You should leave here and go to Judea so your disciples [there] can see the [supernatural] deeds you are performing.
John [the Immerser] was also immersing people in Aenon, near Salem [Note: These locations are thought to have been in northeastern Judea, near the Jordan River], because there was a lot of water there; so people were coming to be immersed.