Your personal understanding of "God's commandments" is an idol in your mind. Unless you are God, you do not fully know God or what God wants, if anything, and your understanding of God is incomplete, therefore an idol. Only God fully knows God. What is in the mind of some pope who fancies himself 'infallible'? I know I am not infallible and I do not know all that God knows. Was the author of the Pentateuch infallible in his recollection of Moses? Was Moses infallible in his understanding of God's commandments? Is God infallible?

Jesus would have used mainly the language of his contemporaries. But Jesus' 'Abba' goes beyond his contemporaries and is not simply 'Father.' There has been much discussion as to what Abba means. Does it mean elder or a higher self, not gender specific? Have you read anything on Abba?

Aren't the Ten Commandments just a re-write of something earlier -- Code of Hammurabi also claimed to be the command of a god??