Acts 26:5

knowing me before, (if they would testify it,) that according to the strictest sect of our religion I lived a pharisee.

Acts 23:6

But Paul, knowing that the one part were sadducees, and the other pharisees, cried out in the sanhedrim, "Brethren, I am a pharisee, the son of a pharisee: for the hope of a resurrection of the dead I am now prosecuted."

Acts 22:3

---I am indeed a Jew, born at Tarsus in Cilicia, but educated in this city at the feet of Gamaliel, accurately instructed in the law of our fathers, being zealous for God, as ye all are this day.

Acts 24:5

For having found this man a pestilent fellow, and a mover of sedition among all the Jews throughout the world, and a ring-leader of the sect of the Nazarenes,

Acts 22:5

As the high priest is my witness, and all the elders: from whom I received letters to our brethren, and went to Damascus to bring those also, that were there, bound to Jerusalem, to be punished.

Acts 24:14

But this I confess unto thee, that after the way, which they call heresy, so do I worship the God of my fathers, believing all things which are written in the law, and the prophets:

Philippians 3:5-6

having been circumcised on the eighth day, of the race of Israel, of the tribe of Benjamin, an Hebrew of Hebrews, with respect to the law a pharisee,

Treasury of Scripture Knowledge

Summary

Which knew me from the beginning, if they would testify, that after the most straitest sect of our religion I lived a Pharisee.

Bible References

If

Acts 22:5
As the high priest is my witness, and all the elders: from whom I received letters to our brethren, and went to Damascus to bring those also, that were there, bound to Jerusalem, to be punished.

That

Acts 23:6
But Paul, knowing that the one part were sadducees, and the other pharisees, cried out in the sanhedrim, "Brethren, I am a pharisee, the son of a pharisee: for the hope of a resurrection of the dead I am now prosecuted."
Philippians 3:5
having been circumcised on the eighth day, of the race of Israel, of the tribe of Benjamin, an Hebrew of Hebrews, with respect to the law a pharisee,