Acts of the Apostles 8:1, 5, 14

Saul was one of the witnesses, and he agreed completely with the killing of Stephen. A great wave of persecution began that day, sweeping over the church in Jerusalem; and all the believers except the apostles were scattered through the regions of Judea and Samaria.

Philip, for example, went to the city of Samaria and told the people there about the Messiah.

When the apostles in Jerusalem heard that the people of Samaria had accepted God’s message, they sent Peter and John there.