Acts of the Apostles 9:1-3

Meanwhile, Saul was uttering threats with every breath and was eager to kill the Lord’s followers. So he went to the high priest. He requested letters addressed to the synagogues in Damascus, asking for their cooperation in the arrest of any followers of the Way he found there. He wanted to bring them—both men and women—back to Jerusalem in chains. As he was approaching Damascus on this mission, a light from heaven suddenly shone down around him.