There is no greater mystery than God. And perhaps there is no greater quest than to answer the question who is God? as truthfully as possible. When the identity of God is discussed there are a wide range of ideas put forward. Some have gained acceptance and formed the basis for the world’s religions. For those who have realised that God must have an identity they conclude that He must be a person. This is called theism- or more precisely, monotheism. Judaism, Islam, and Christianity are three great monotheistic religions of the world. But Christianity is further distinguished from these other monotheistic religions by identifying God as Father, Son and Holy Spirit.