Acts 26:9 KJV
I verily thought with myself, that I ought to do many things contrary to the name of Jesus of Nazareth.
Acts 26:9, King James Version
In context
8 Why should it be thought a thing incredible with you, that God should raise the dead?
9 I verily thought with myself, that I ought to do many things contrary to the name of Jesus of Nazareth.
10 Which thing I also did in Jerusalem: and many of the saints did I shut up in prison, having received authority from the chief priests; and when they were put to death, I gave my voice against them.