However, I admit that I worship the God of our ancestors as a follower of the Way, which they call a sect. I believe everything that is in accordance with the Law and that is written in the Prophets, and I have the same hope in God as these men themselves have, that there will be a resurrection of both the righteous and the wicked. So I strive always to keep my conscience clear before God and man.
"After an absence of several years, I came to Jerusalem to bring my people gifts for the poor and to present offerings. I was ceremonially clean when they found me in the temple courts doing this. There was no crowd with me, nor was I involved in any disturbance. But there are some Jews from the province of Asia, who ought to be here before you and bring charges if they have anything against me. Or these who are here should state what crime they found in me when I stood before the Sanhedrin-- unless it was this one thing I shouted as I stood in their presence:
'It is concerning the resurrection of the dead that I am on trial before you today.'"
Acts 24:14-21

Please note that Paul’s defense before Felix had two points: (1) Paul’s proclamation of the gospel, and (2) Paul’s defense of regarding the charges made against Him

First, Paul’s proclamation of the gospel. This is first! Granted, Paul did not give a full presentation of the gospel in this case (though he certainly would in later legal proceedings), but Paul’s first point was that following Jesus was neither new nor novel as it was prophesied throughout the Old Testament.

Second Paul again explained that the specific charges against him were fallacious.

The lesson is just this: besides sticking with “just the facts,” while refraining from attacking his accusers, Paul made clear who he was and what he was doing because of his commitment to the resurrection of Jesus Christ. Let us remember to “keep the main thing, the main thing.” And what is the main thing? Christ and the gospel—including the Resurrection!