What happens is, people get annoyed that the frog knows about Acts, so they will say, Paul was a pharisee even after conversion!
ahhhh..but then when we see the context, we see he was of that docrinal belief, in that sense he was a pharisee, on that belief system, fine, as the Lord was too. Was Jesus a pharisee?
Then I show the other verses to prove it.
A doctor might say, I am a doctor! Though retired, he is just saying he knows about something, he has an opinion on something, he can't unlearn that, but he actually is no longer a doctor.
Hence, Paul was still of the same belief as the pharisees, and the resurrection, anyone can see chapter 23 was of that issue...so when he stood up, he basically all he was saying, was that he was of the resurrection.
Here we see a paste tense, he LIVED, that was the past, and the context bears it out, that was when he was a killer. Notice again, "god raises the dead" the pharisee belief system mentioned again, as also in 24, and 25.
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. 6 And now I am [c]standing trial for the hope of the promise made by God to our fathers; 7 the promise to which our twelve tribes hope to attain, as they earnestly serve God night and day. And for this hope, O King, I am being accused by Jews. 8 Why is it considered incredible among you people if God does raise the dead?
9 “So then, I thought to myself that I had to do many things hostile to the name of Jesus of Nazareth. 10 And this is [d]just what I did in Jerusalem; not only did I lock up many of the saints in prisons, having received authority from the chief priests, but also when they were being put to death I cast my vote against them. 11 And as I punished them often in all the synagogues, I tried to force them to blaspheme; and being furiously enraged at them, I kept pursuing them even to foreign cities.
That all shows his past, as a pharisee, the killer, but yes, he still believed in the resurrection, but Paul was not a pharisee any more.
So lets be careful in Acts, one must really know the context of that book in particular, before grabbing Acts 23;6, and running with it..uh..uh..won't work.
alrighty now..