He wrote a letter that went like this:

So when they were dismissed, they went down to Antioch, and after gathering the entire group together, they delivered the letter.

When the horsemen came to Caesarea and delivered the letter to the governor, they also presented Paul to him.

and requested letters from him to the synagogues in Damascus, so that if he found any who belonged to the Way, either men or women, he could bring them as prisoners to Jerusalem.

as both the high priest and the whole council of elders can testify about me. From them I also received letters to the brothers in Damascus, and I was on my way to make arrests there and bring the prisoners to Jerusalem to be punished.