“I know Paul wrote most of the new testament. But is it true he never even meet Jesus.”
“Yes, and more to the point no, and possibly... confused yet??”
Paul said of himself, that he “…did not receive it [the Gospel] from any man, nor was I taught it, but I received it through a revelation of Jesus…” – Galatians 1:12, ESV, emphasis in square parentheses mine. Paul made a fairly poignant point of highlighting that A) – he was not “taught the Gospel by other humans”, not by the 12 nor by any other man, verse 12, and B) that it was through the simple and very direct revelation of G-d (Christ), also verse 12, that Paul was taught. Ergo, Paul was taught expressly by and directly by the Risen Lord Jesus. In verse 18 Paul reveals that his ‘time of training’ – “…after three years I went up to Jerusalem to visit Cephas…” – lasted three years, and in verse 19 Paul again reiterates that he was not “Discipled” by any of the other Apostles. – Galatians 1 - http://bit.ly/24Xqp24. Thus the point can be argued that Paul did not meet, or *know* Jesus in His pre-crucifixion, human incarnate form.
And finally, let’s look at – ‘Maybe it’s possible that Paul did meet Jesus’ – and consider some texts, and implications from a little earlier in Scripture, in Acts 6, 7 and 8. The Book of Acts covers a time span of some thirty thirty-five odd years of the early Church. Acts Chapters One through Five covers between one and three years (from the Resurrection), Acts 6, 7 and 8 cover between another two to five years (from the first couple of Chapters). And Acts 9, Saul’s / Paul’s conversion is another five to seven years later again, (so Paul’s conversion would be between five and maybe seven years later still, after the Resurrection of Christ). With that in mind, consider the events of Acts 6:8 through Acts 7:60, which would have happened roughly three possibly four years, post the Crucifixion, and Resurrection of Christ, wherein we read about both the very first martyr for Christ, Stephen, and also a very powerful speech by Stephen, followed by his execution. And consider the words of Acts 7:58 about one particular young man:
“…witnesses laid down their garments at the feet of a young man named Saul.”, ESV – http://bit.ly/24XwV8M
Why would Saul’s age, at the time of the Crucifixion matter, or be relevant? Perhaps no reason. But, perhaps a 15-year-old Saul was one of many Pharisees-in-training, standing in the crowd the day Jesus was Crucified. Perhaps, going back over the roughly three years of Jesus Earthly Ministry, a 12 to 15 years old, up-and-coming, Pharisee in training named Saul, had occasion to hear, and initially reject, Jesus personal first hand preaching? Once more, this is speculation, as Scripture is silent on the specifics, therefore they are not points of vital significance. Nonetheless, it is within reason to conclude at least the possibility of Saul being a first-hand witness to the pre-Crucifixion Jesus, and His exploits.
Thus, the clear answer to – “Did Paul ever meet Jesus?” – is, in my humble opinion, a resounding YES! Yes, Paul met Jesus, and I think it more than fair to surmise that Paul met (at least saw, and knew of) both the pre-Crucified incarnate Jesus, and as well as the post Resurrection, Risen Lord, Jesus.