Prokerusso describes John’s prior public proclamation of a baptism of repentance to Israel.

The attested use describes a proclamation made before the coming mentioned in Acts 13:24, concerning a baptism of repentance addressed to all the people of Israel.

1. Proclaiming beforehand · dominant

   In Acts 13:24, the aorist active masculine singular genitive participle occurs in the statement about John before the coming mentioned; the APB renders the clause, “John had proclaimed before his coming a baptism of repentance to all the people of Israel.”

   Acts 13:24

In the Anselm Project Bible: In Acts 13:24, the APB presents the clause as John having “proclaimed before his coming” a baptism of repentance. The verse is read as a whole, so the precise contribution of the form is limited to the clause context.