Argument from inconsistent revelations
Christians believe that Jesus is the savior of the world and the son of God; Jews believe just as strongly that he is not. Similarly, Muslims believe that the Qur'an was divinely authored, while Jews and Christians do not. There are many examples of such contrasting views. Positions where one religion contradicts another, or where one group of people contradicts another are common. There are many denominations in Christianity who do not agree about many things.