John 4:2

4:2 (although Jesus himself was not baptizing, but his disciples were), ¹ 

John 3:22

Further Testimony About Jesus by John the Baptist

3:22 After this, ²  Jesus and his disciples came into Judean territory, and there he spent time with them and was baptizing.

¹ sn This is a parenthetical note by the author.

² tn This section is related loosely to the preceding by μετὰ ταῦτα (meta tauta). This constitutes an indefinite temporal reference; the intervening time is not specified.