Theists are people who believe in one GOD. This is a belief system that is shared by many religions, including Christianity, Judaism, and Islam. The term 'THEIST' comes from the Greek word 'theos, ' which means 'GOD.' Theists believe that there is only one GOD who is all-powerful and all-knowing. They also believe that this GOD is the creator of the universe and is responsible for all of its laws and regulations. Theists often have a strong faith in their beliefs and strive to live a life that is pleasing to GOD.