Expositor's Bible Commentary Commentary Acts 8:25

"They therefore, when they had testified and spoken the word of the Lord, returned to Jerusalem, and preached the gospel to many villages of the Samaritans." — Acts 8:25 (ASV)

Luke closes his account of the evangelization of Samaria with a transitional sentence that tells us that on the apostles’ return journey to Jerusalem, further evangelization of Samaria took place. The “they” of this verse refers primarily to Peter and John, but it may also refer to Philip for part of the journey, as they evangelized together in the southern regions of Samaria.