5 They have known me for a long time and can testify, if they are willing, that I conformed to the strictest sect of our religion, living as a Pharisee.

5 They have known for a long time, if they are willing to testify, that according to the strictest party of our religion I have lived as a Pharisee.

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

5 If they would admit it, they know that I have been a member of the Pharisees, the strictest sect of our religion.

5 They knew me from the first, if they were willing to testify, that according to the strictest sect of our religion I lived a Pharisee.

5 They have known me for a long time. If they want to, they can tell you that I was a good Pharisee. And the Pharisees obey the laws of my tradition more carefully than any other group.

5 having knowledge of me from the first, if they be willing to testify, that after the straitest sect of our religion I lived a Pharisee.

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.

5 They’ve known me for a long time and can testify, if they’re willing, that I followed the strictest party of our religion. They know that I lived my life as a Pharisee. 

5 They had previously known me for quite some time, if they were willing to testify, that according to the strictest party of our religion I lived as a Pharisee.

5 They have known for a long time, if they are willing to testify, that I have belonged to the strictest sect of our religion and lived as a Pharisee.

5 having known me for a long time, if they are willing to testify, that in accordance with the strictest party of our religion I lived as a Pharisee.

5 They have known me for a long time. So if they wanted to, they could give witness that I lived by the rules of the Pharisees. Those rules are harder to obey than the rules of any other group in the Jewish faith.