Acts 26:5

since they have known about me for a long time, if they are willing to testify, that I lived as a Pharisee according to the strictest sect of our religion.

Acts 23:6

But perceiving that one group were Sadducees and the other Pharisees, Paul began crying out in the Council, “Brethren, I am a Pharisee, a son of Pharisees; I am on trial for 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, educated under Gamaliel, strictly according to the law of our fathers, being zealous for God just as you all are today.

Acts 24:5

For we have found this man a real pest and a fellow who stirs up dissension among all the Jews throughout the world, and a ringleader of the sect of the Nazarenes.

Acts 22:5

as also the high priest and all the Council of the elders can testify. From them I also received letters to the brethren, and started off for Damascus in order to bring even those who were there to Jerusalem as prisoners to be punished.

Acts 24:14

But this I admit to you, that according to the Way which they call a sect I do serve the God of our fathers, believing everything that is in accordance with the Law and that is written in the Prophets;

Philippians 3:5-6

circumcised the eighth day, of the nation of Israel, of the tribe of Benjamin, a 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 and all the Council of the elders can testify. From them I also received letters to the brethren, and started off for Damascus in order to bring even those who were there to Jerusalem as prisoners to be punished.

That

Acts 23:6
But perceiving that one group were Sadducees and the other Pharisees, Paul began crying out in the Council, “Brethren, I am a Pharisee, a son of Pharisees; I am on trial for the hope and resurrection of the dead!”
Philippians 3:5
circumcised the eighth day, of the nation of Israel, of the tribe of Benjamin, a Hebrew of Hebrews; as to the Law, a Pharisee;