Samuel Adams prayed to God, in his way, but he was simply stating that he would not refuse to pray with anyone else. There is but one God, though some call Him by different names, and approach Him in different ways of worship. If someone believes in God as the Author of Life, I don't care WHAT they call Him.
No, gods like allah and Beck’s jesus, the brother of Lucifer, are not Jehovah,
1 Corinthians 8:6 But to us there is but one God, the Father, of whom are all things, and we in him; and one Lord Jesus Christ, by whom are all things, and we by him.