Christianity is a monotheistic religion centred on the life and teachings of Jesus of Nazareth, as presented in the New Testament. Christians believe that Jesus is the begotten Son of God and the Messiah (Christ) prophesied in the Old Testament. To Christians, Jesus Christ is a teacher, the model of a virtuous life, the revealer of God, and most importantly the saviour of humanity who suffered, died, and was resurrected to bring about salvation from sin. Christians maintain that Jesus ascended into heaven, and most denominations teach that Jesus will return to judge the living and the dead, granting everlasting life to his followers. Christians call the message of Jesus Christ the Gospel ("good news") and hence label the written accounts of his ministry as gospels.