Christians understand that there is only one God. In early Christianity, this understanding did not come straight away because they believed that other Gods existed, without power. However, in Mark’s Gospel it was established that there was only one God with the command in Deuteronomy 6:4, ‘The Lord our God is One’. This phrase forms the heart of the Shema prayer in Judaism and is said to be the ideal expression of ethical monotheistic belief. God alone has the complete power, love and authority to save humanity from its sins