Paul was a Jew who lacked knowledge. He repented as he gain knowledge of JESUS and God used him to write 1/2 to 2/3 of the NT.
He was not affiliated with any worldly organization. God would not use a heathen for his heart was not submitted to GOD alone as God's Way and thoughts are higher than ours ways and thoughts.
1 Corinthians 7:28 "But if you do marry, you have not sinned; and if a virgin marries, she has not sinned. But those who marry will face many troubles in this life, and I want to spare you this."
1 Corinthians 7:36 "If anyone is worried that he might not be acting honorably toward the virgin he is engaged to, and if his passions are too strong[a] and he feels he ought to marry, he should do as he wants. He is not sinning. They should get married".
Paul wrote Corinthians. He was a man of God and not a man of an organization with man made beliefs that void God's Word.
This statement, standing alone, is incomplete.
Paul had VAST knowledge - just not of the Savior and His plans.
Remember that he studied at the feet of Gamiel?
Remember what Festus said to him?