Was the Apostle Paul considered a philosopher?

not really.

He waws a tent maker early on and probably did that off and on for much of his life... maybe...

But he , when he lived, was considered prophet and messenger of God , preaching that the Messiah had come, the Savior of the world had come.

Of course, if you weren't into Chrsit you might have just thought of him as a fool

but Prophet, representaive of God, bearer of the gospel.. these terms all work.