Saul was one of the official witnesses at 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 fled into Judea and Samaria.
(Some godly men came and buried Stephen with loud weeping.)
Saul was going everywhere to devastate the church. He went from house to house, dragging out both men and women to throw them into jail.
But the believers who had fled Jerusalem went everywhere preaching the Good News about Jesus.