Gospel of Barnabas

Gospel of Barnabas was found in 15th centuary, it was an interesting discovery as 
a. Barnabas is one of the 12 apostle of Jesus 
b. Paul is NOT a apostle of Jesus in fact..people consider him one altho he is not.
https://en.wikipedia.org/wiki/Apostles#The_twelve_apostles

The 12 apostle are :-

Peter (born Simon), Andrew, brother of Peter, James, son of Zebedee, John, brother of James, son of Zebedee, Philip, Bartholomew, Thomas, Matthew, James, son of Alphaeus, Judas Thaddeus, also known as Jude, Simon the Zealot, also known as Simon the Canaanite, Judas Iscariot, Matthias 

Paul is nowhere to be found, as he is not one of them, but after most of the Apostle are killed, he becase the one who composed the Bible.

What so interesting about Gospel of Barnabas?
https://en.wikipedia.org/wiki/Judas_Iscariot#Gospel_of_Barnabas

1500 years old and in it...

According to medieval copies (the earliest copies from the 15th century) of the Gospel of Barnabas it was Judas, not Jesus, who was crucified on the cross. This work states that Judas's appearance was transformed to that of Jesus', when the former, out of betrayal, led the Roman soldiers to arrest Jesus who by then was ascended to the heavens. This transformation of appearance was so identical that the masses, followers of Christ, and even the Mother of Jesus, Mary, initially thought that the one arrested and crucified was Jesus himself. The gospel then mentions that after three days since burial, Judas' body was stolen from his grave, and then the rumors spread of Jesus being risen from the dead. When Jesus was informed in the third heaven about what happened, he prayed to God to be sent back to the earth, and descended and gathered his mother, disciples, and followers, and told them the truth of what happened. He then ascended back to the heavens, and will come back at the end of times as a just king.

This Gospel is considered by the majority of Christians to be late and pseudepigraphical; however, some academics suggest that it may contain some remnants of an earlier apocryphal work (perhaps Gnostic, Ebionite or Diatessaronic), redacted to bring it more in line with Islamic doctrine. Some Muslims consider the surviving versions as transmitting a suppressed apostolic original. Some Islamic organizations cite it in support of the Islamic view of Jesus.