There is one true God. He has revealed himself as having always existed without any outside cause or agent bringing Him into being (Isaiah 43:10) He is the Creator of heaven and earth (Genesis 1:1) and the One who redeems, saves, or rescues mankind form sin and its painful consequences (Isaiah 43:11). God had further revealed himself as a single Being (Deuteronomy 6:4) consisting of three interrelated persons: Father, Son, and Holy Spirit (Matthew 28:19, Luke 3:22). This concept of one God or Being of three persons is called the Trinity.