Acts 26:9-11

9 "Indeed, I myself was convinced that I ought to do many things against the name of Jesus of Nazareth.
10 And that is what I did in Jerusalem; with authority received from the chief priests, I not only locked up many of the saints in prison, but I also cast my vote against them when they were being condemned to death.
11 By punishing them often in all the synagogues I tried to force them to blaspheme; and since I was so furiously enraged at them, I pursued them even to foreign cities.

Acts 26:9-11 In-Context

7 a promise that our twelve tribes hope to attain, as they earnestly worship day and night. It is for this hope, your Excellency, that I am accused by Jews!
8 Why is it thought incredible by any of you that God raises the dead?
9 "Indeed, I myself was convinced that I ought to do many things against the name of Jesus of Nazareth.
10 And that is what I did in Jerusalem; with authority received from the chief priests, I not only locked up many of the saints in prison, but I also cast my vote against them when they were being condemned to death.
11 By punishing them often in all the synagogues I tried to force them to blaspheme; and since I was so furiously enraged at them, I pursued them even to foreign cities.
12 "With this in mind, I was traveling to Damascus with the authority and commission of the chief priests,
13 when at midday along the road, your Excellency, I saw a light from heaven, brighter than the sun, shining around me and my companions.

Footnotes 1

New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.