|Many non-Muslims are surprised to find out that according to Muslim belief, Jesus, the son of Mary, is one of the greatest messengers of God.
Muslims are taught to love Jesus, and a person cannot be a Muslim without believing in the virgin birth and miracles of Jesus Christ, peace be upon him.
Muslims believe these things about Jesus not because of the Bible or any other religion, but simply because the Noble Qur'an says these things about him. However, Muslims always emphasise that the miracles of Jesus, and all other prophets, were by "God's permission". This having been said, many Christians feel to not believe that Jesus is the "Son of God", "God Incarnate" or the "Third Person" of the Trinity. This is because the Qur.aan clearly says that Almighty God does not have a "Son" --- neither allegorically, physically, metaphorically or metaphysically.
The Pure Monotheism of Islaam rejects the notion of "defining" God (which is basically what the "Doctrine of the Trinity" does), saying that someone is "like" God or equal to him, or praying to someone else besides God. Also, Islaam teaches that titles such as "Lord" and "Saviour" are due to God alone.
In order to avoid misunderstanding, it should be clarified that when Muslims criticise the Bible or the teachings of Christianity, they are not attacking "God's Word" or Jesus Christ, peace be upon him. From the Muslim point of view, they are defending Jesus and God's Word, which they have in the form of the Qur'an. Muslim criticism is targeted at writings that some people claim are God's word, but Muslim's simply don't accept their claim that they are really God's word.
Additionally, Christian doctrines such as the Trinity and the Atonement are criticised by Muslims precisely because they did not originate from Jesus, peace be upon him. In this way, Muslims are the true followers of Jesus, peace be upon him, because they defend him from the exaggerations of the Christians and teach the Pure Monotheism that Jesus himself followed.