Abrahamic religions as adherents of an Abrahamic religion, about 32% as adherents of other religions, and 16% as adherents of no organized religion. Christianity claims 33% of the world's population, Islam has 21%, Judaism has 0.2% and the Bahá'í Faith represents around 0.1%. It was suggested by Louis Massignon that the phrase "Abrahamic religion" means that all these religions come from one spiritual source. Paul the Apostle referred to Abraham as the "father of us all". There is a Quranic term, "millat Ibrahim", 'religion of Ibrahim', indicating that Islam sees itself as standing in a tradition of religious practice from Abraham. Jewish
Christianity and other religions Christianity and other religions Christianity and other religions documents Christianity's relationship with other world religions, and the differences and similarities. Evangelical Christians believe that religious pluralism is heresy and contradicts the Bible. Some Christians have argued that religious pluralism is an invalid or self-contradictory concept. Maximal forms of religious pluralism claim that all religions are equally true, or that one religion can be true for some and another for others. Some, but by no means all, Christians hold such pluralism to be logically impossible. Roman Catholicism believes that while it is the fullest and most complete revelation of God to