**MelanieAnne; I will go back and try to understand your points. I agree to the topic that Jesus did not write one letter of Scripture. That is true. Muhammad also did not write a word of the Quran.
But Muhammad made the message from God (Allah) known to every one verbatum (word for word exactly). Then he arranged (ordered) it to be memorised and recited in daily prayers. He also made it written by the scribes. That was the Quran, in parchments and peices over a period of 23 years.
Muhammad had memorised the Quran and so did most of his followers. Muhammad was visited by the angel Gabriel once every years in the month of ramadhan just for the purpose of reminding and reciting the whole revealed part of Quran in the right order. That was done once every year.
In the last year of the life of the prophet MUhammad, the blessed angel Gabiel repeated the whole Quran to Muhammad twice in the month of Ramadhan.
So later the prophet Muhammad told his daughter(?) " The angel used to repeat the Quran to me once in the month of Ramadhan. This year the angel has repeated it twice.
All prophets attained (at least) half the age of the previous prophet (the predecessor prophet). Jesus lived a long life of 120 years. I hope I shall (surely) go at the head of sixty(60)."**
And that was true. The prophet Muhammad died at the age of about 63 years.
Even though he did not write any word of the Quran, yet he did well to preserve the message from God. Similarly, we Muslims believe that Jesus received all messages from God through the holy spirit (angel gabriel). He acted on those messages and passed them on to his friends and followers and even to his foes.
Nevermind Jesus did not write any word of the message. he did well to pass it on to the people very well. That was good enough for us Muslims. WE believe in what he said. All Praise be to Allah.