'Persecutor' in the Bible

Otherwise, my enemy will say, "I have overcome him;" Otherwise, my persecutor will rejoice when I am shaken.

They only heard it said, "He who was once our persecutor is now telling the Good News of the faith of which he formerly made havoc."

As for my zeal, I was a persecutor of the church. As far as righteousness in the Law is concerned, I was blameless.

Who was before a blasphemer, and a persecutor, and injurious: but I obtained mercy, because I did it ignorantly in unbelief.