When John had first preached before his coming the baptism of repentance to all the people of Israel.
Berean Study Bible (BSB) - Acts 13:24 >Before the arrival of Jesus, John preached a baptism of repentance to all the people of Israel.
Textus Receptus (TR) - Acts 13:24 >προκηρύξαντος Ἰωάννου πρὸ προσώπου τῆς εἰσόδου αὐτοῦ βάπτισμα μετανοίας παντὶ τῷ λαῷ Ἰσραήλ.