The three Abrahamic religions do not agree on who God is.
For Muslims, Jesus is coming back as a Muslim
For Jews, Jesus is at best a righteous Rabbi.
For Christians, Jesus is Messiah, Saviour.
Jewish
God said to Moses, "I AM WHO I AM. This is what you are to say to the Israelites: 'I AM has sent me to you.'"
Ex 3:14
Christian
Jesus said to them, “Truly, truly, I say to you, before Abraham was, I am.”
Jn 8:58
Muslim
Sura 4:157 That they said (in boast), "We killed Christ Jesus the son of Mary, the Messenger of Allah";-but they killed him not, nor crucified him, but so it was made to appear to them, and those who differ therein are full of doubts, with no (certain) knowledge, but only conjecture to follow, for of a surety they killed him not.
Also see, Cherry picking the Bible, @jeanviete
Yes, they have all their own expectations which is not The Almightys standard, HE has his OWN!
The Jews say that He will be from the roots of David and this is true. The Holy Grail is the secret, that Christ had children and so his bloodline still existed. When He comes back, He incarnate in the most rightous man of his own bloodline.
But the point is, all 3 religions mention him in a very similar way! It is Satan that creates difference with small deceptions to let the people fight each other instead to worship together The Almighty and accept and LOVE EACH OTHER ;)
I will also post very soon an article about The Three Abrahamic Religions and the basic 3 deceptions...
... but thank you for your comments, its a pleasure to talk to you. If you want to, join our groupes ;)