Like Jews, Muslims, as well as other Christians, Jehovah's Witnesses believe there is an all-powerful, all-knowing God who created everything. They also have some beliefs that are different from most Christians. They call God "Jehovah" (a translation of the Hebrew letters "YHWH") and they believe it is important to use that name. They believe Jesus is God's son, the first angel, and that he is also called Michael the Archangel. They say the holy spirit is God's power rather than a person. They do not believe in the Trinity. They believe the Bible is a book that God used humans to write and that it is completely true and the best guide for how people should live.