As far as I know there are 4 Gospels: Matthew, Mark, Luke, and John.
I am an ex-Christian (currently atheist) who had a debate with a Muslim about a few discrepancies between the Qur'an and the Bible. The Muslims believe that
- Haman worked for Pharaoh and is building babel tower
- Mary was a sibling of Aaron
- Jesus is given "gospel".
As a non-Muslim and atheist, I of course think that Muhammad simply made a mistake. Perhaps he didn't get the story right or wasn't consistent with his sources. But of course Muslim apologists will claim that it's a misunderstanding anyway: different Haman, different meaning of sibling, and different gospel.
The 3rd point is more interesting though. My Muslim friend pointed out that gospels already EXISTED before the Bible was written:
So it's a bit tricky. In Indonesia the word for "gospel" is "injil". I wonder where that word came from. Muslims seem to think that Jesus got the "gospel" like Muhammad got the Qur'an. But I think that's just not the case. The Gospels we have now, I understand them to be Jesus' late biographies, a bit like Hadith in Islam.
However, the fact that the word "gospel" DOES show up in the Gospels themselves is intriguing. What "gospel" was Jesus preaching because the Gospels as books weren't even written when he was living?
It looks to me that he was a Rabbi who preached typical Judaism stuff that might or might not be reinterpreted by his followers to be something much more than that.