Matthew 24:26
Wherefore if they shall say unto you, Behold, he is in the desert; go not forth: behold,he is in the secret chambers; believe it not.
The way between Jerusalem and Damascus (the one that Paul took) is a desert.
Acts 22:6-9
6 “About noon as I came near Damascus, suddenly a bright light from heaven flashed around me. 7 I fell to the ground and heard a voice say to me, ‘Saul! Saul! Why do you persecute me?’8 “‘Who are you, Lord?’ I asked.
“ ‘I am Jesus of Nazareth, whom you are persecuting,’ he replied. 9 My companions saw the light, but they did not understand the voice of him who was speaking to me.
Paul is basically saying "I saw Jesus out in the desert".
Remember, earlier, Jesus said, "if anyone tells you he is out in the desert, do not go out"
If Jesus is telling you not to go out for a particular person, it's very obvious you should not believe that person as well.
So how did that major contradiction got into the Bible?
Remember Jesus held the same low regards for the Pharisees and Scribes in term of righteousness....They will make mistakes. That's how those contradictions got together.
Don't just take things in plain sight. Look deeper.
Proverbs 14:15
The simple believe anything, but the prudent give thought to their steps.