Acts 26:5

who knew me before from the outset of my life, if they would bear witness, that according to the strictest sect of our religion I lived a Pharisee.

Acts 23:6

But Paul, knowing that the one part of them were of the Sadducees and the other of the Pharisees, cried out in the council, Brethren, I am a Pharisee, son of Pharisees: I am judged concerning the hope and resurrection of the dead.

Acts 22:3

I am a Jew, born in Tarsus of Cilicia, but brought up in this city, at the feet of Gamaliel, educated according to the exactness of the law of our fathers, being zealous for God, as ye are all this day;

Acts 24:5

For finding this man a pest, and moving sedition among all the Jews throughout the world, and a leader of the sect of the Nazaraeans;

Acts 22:5

as also the high priest bears me witness, and all the elderhood: from whom also, having received letters to the brethren, I went to Damascus to bring those also who were there, bound, to Jerusalem, to be punished.

Acts 24:14

But this I avow to thee, that in the way which they call sect, so I serve my fathers' God, believing all things which are written throughout the law, and in the prophets;

Philippians 3:5-6

as to circumcision, I received it the eighth day; of the race of Israel, of the tribe of Benjamin, Hebrew of Hebrews; as 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 also the high priest bears me witness, and all the elderhood: from whom also, having received letters to the brethren, I went to Damascus to bring those also who were there, bound, to Jerusalem, to be punished.

That

Acts 23:6
But Paul, knowing that the one part of them were of the Sadducees and the other of the Pharisees, cried out in the council, Brethren, I am a Pharisee, son of Pharisees: I am judged concerning the hope and resurrection of the dead.
Philippians 3:5
as to circumcision, I received it the eighth day; of the race of Israel, of the tribe of Benjamin, Hebrew of Hebrews; as to the law, a Pharisee;