What is the Gospel, who is Jesus, who is the Christ, and what is the birth of the Christ?

The true Gospel is the Book of Allah the Almighty, which He revealed to Jesus, peace be upon him, and not the many gospels found among the Christians. As for "Yeshua," it is the name by which Christians distorted the name of Jesus, peace be upon him. And the Messiah is Jesus, peace be upon him, and this word is also applied to the Dajjal (Antichrist).