God in Judaism
In Judaism, ultimate reality is a single, all-powerful God. It is this belief that made the Jews unique among other ancient Semitic peoples and that became the legacy Judaism has passed on to the entire Western world.
When it comes to beliefs, Judaism is best known for its "ethical monotheism," which is the belief in one God who demands ethical behavior of humans. God's name in Hebrew is YHWH, which simply - but significantly - means "I am."