Revelation played a huge role in the origins of the three most popular religions. For example, in Islam, the relation of this religion has been established by God in His revelation, the Qur'an which is the Islam's Holy book. The founders of Christianity and Judaism were Abraham, Moses, David, Jesus, whom are the prophets of God. The Torah, the Psalms, the Evangel which are the gospels (good news), were what they had conveyed - are revelations from God. When it comes to the similarities and differences between those three religions, all of them are monotheistic religions; meaning, they all believe in one God who's has all the power and is the creator of everything. Another similarity is that they all believe that we, humans, are the children