Deficient as in being totally dead wrong? Deficient means wrong... unless you are thinking along ecumenical lines where if you're sincere then even if you're worshipping a 'deficient' god then it's ok?
I'm not sure how using the word 'deficient'to describe him makes Allah the same as the God of Abraham, Isaac and Jacob. If that is the case, I would think because we are fallible human beings, ALL our understanding of God is 'deficient' in some way.
deficient
• adjective 1 not having enough of a specified quality or ingredient. 2 insufficient or inadequate.
— ORIGIN Latin, from deficere ‘fail’.
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I meant deficient in that they are largely wrong, not "totally dead wrong". Remember that Muslims do:
- Worship One God, who they consider to be the God of Abraham, Isaac, and Ishmael (and Jacob, but they, coming from the line of Ishmael hold him as the child of God's promise instead of Jacob).
- Address God as 'Allah,' which is Arabic for 'God,' and incidentally is the VERY SAME name that Arabic-speaking Christians use to address the true and Triune God.
- Take into account the revelation given to the Jews and Christians
However they also (wrongly):
- Gravely twist that same revelation given to the Jews and Christians
- Believe that Mohammed is a true prophet, and is the last and greatest prophet
- Believe that God is only one person, and that Jesus was only human, and solely a prophet inferior to Mohammed.
And so yes, even though it may be fair to say that all of us have a 'deficient' understanding of God because we are human, the understanding that the Muslims have, as well as their manner of worship is gravely deficient, and far inferior to that of the Jews, and moreso inferior to that of the Christians. And no, I'm not saying that worshiping God in any deficient manner is OK.