A book titled 'Allah is the God of all Creatures" explains who God is, and his attributes. Allah is the Arabic word for God used by Christian Arabs and Muslims. The Arabic Bible uses the word Allah for God. Jesus used the words Eloi and Eli to mean God. When Jews put him under trial, he uttered" my God" to mean he has his God. Islam and Christianity teach Unitarianism. Allah is the only Creator of all Universes. All the true prophets of Allah received a revelation from Allah. Muhammad was the last prophet sent by God and everyone is obliged to follow Muhammad's religion. All true prophets of God taught worshiping one God. They follow one religion, which is submission to God. In Arabic, we call it Islam, so all prophets are Muslims. The God Allah who is the Creator of all Universes revealed the Quran to Muhammad as the Gospel was revealed to Jesus. Everyone is free to worship Allah if he likes, but the salvation of all people will come from believing the Quran as the last revelation of God to Muhammad. Everyone is obliged to worship Allah tobe rewarded with eternal paradise; else anyone who rejects worshiping Allah will be subjected to eternal hell in life thereafter.