A Christian should know that God is a Creator, that God is an entity that is all-powerful and all knowledgeable, God is everywhere and God is an entity filled with grace, love, compassion and forgiveness, that Jesus is the son of God and Jesus came on earth to explain to people in a very revolutionary way the nature of God, that God was not a stern judge who was keeping track of 600 or so rules and regulations that you had to keep in order to be acceptable to God.