5They 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.
5since 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.
5They have known me for a long time, if they are willing to testify to it, that according to the strictest sect of our religion, I have lived as a Pharisee.
5They have known me for a long time. So if they wanted to, they could tell you how I have lived. I have lived by the rules of the Pharisees. Those rules are harder to obey than those of any other Jewish group.
5So they have known me for a long time. They could tell you that I always obeyed our Jewish laws. They know that I was a Pharisee. I carefully obeyed God's Law, as a Pharisee does. But maybe they do not want to tell you all that.