Ἰησοῦς αὐτὸς οὐκ ἐβάπτιζεν (he/she/it was baptizing) ἀλλ᾿ οἱ μαθηταὶ αὐτοῦ.

Ἰησοῦς αὐτὸς οὐκ ἐβάπτιζεν (he/she/it was baptizing)

ἀλλ᾿ οἱ μαθηταὶ αὐτοῦ.

Jesus himself was not baptizing, but his disciples were.