Jesus said, "Whoever shall say, 'You fool', shall be guilty enough to go into the fiery hell."
Paul used these very words to his Corinthian readers in 1 Corinthians 15:36. "You fool!" In fact, if you take those two words out, the verse reads better.
Is this another case of the apostle writing "not the Lord, but I say"? Because it certainly is hard to reconcile Jesus' hellfire condemnation of those very words and then Paul choosing to use those exact words in his writing.
