All worship and prayers go to the One God irrespective of our religious lables or concepts. All creation comes from him and will return to him.
Yet, I agree with naidamar that when trinitarian Christians claim they worship ONE God of the Shema/Tawheed, they only decieve themselves.
Surah 112
1. Say: He is God, the ONE
2. God the eternal, absolute,
3. He Begetteth not, nor is he begetton.
4. And there is none like unto him.
The concept of God of the Shema and Tawheed is Indivisible, Unique, One
The concept of God of the Shema and Tawheed is NOT a triune God, is not a 3-in-one God....
Neither Jews nor Muslims accept ONE God to mean a triune God.
So then, Christians have a dilemma ---they can ignore the Torah and the Quran and stick with their triune concept of God. or they can accept the Shema/Tawheed and follow the teachings of the (Jewish) Jesus Christ (pbuh) and ignore the concept of a triune God. If they choose the first path, and they intend to stay true to it, they must accept that they are polytheists. If they choose the other path, and intend to stay true to it, they must accept that a triune concept of God is incompatible with the monotheism of the Shema/Judaism and Tawheed/Islam.
Christians have chosen neither path----they simply obsess and fight over the intricacies of their triune concept of God, forgetting both the Shema and the many wisdom teachings of Jesus Christ(pbuh). They choose to decieve themselves using words (and technicalities). They are true to neither their Triune God, nor to the ONE Indivisible Unique God worshipped by Jesus Christ (pbuh) and all the other Prophets.
Jewish monotheistic concept of God......
"Judaism is based on a strict
monotheism. This doctrine expresses the belief in one
indivisible God. The worship of multiple gods (
polytheism) and the concept of a
Singular God having multiple persons (as in the doctrine of
Trinity) are equally unimaginable in Judaism. The statement
par excellence in terms of defining God is the
Shema Yisrael, originally appearing in the
Hebrew Bible: "Hear O Israel, the Lord is our God, the Lord is One", also translated as "Hear O Israel, the Lord is our God, the Lord is unique/alone."
[Deut. 6:4]"----wikipedia
The Hindu polytheistic concept of God....
There is One supreme God. Brahma, Vishnu and Siva are not three independent and separate deities, but three different aspects of the same Supreme God, The descent of God to Earth in corporeal form to restore
dharma to society and to guide humans to
moksha, as an incarnation is called an
avatar.
(Christian = 3-in-one God , the Hindu = 100s-in-one God)
Thomas Paine----"...But it is necessary to the happiness of man, that he be mentally faithful to himself. Infidelity does not consist in believing or disbelieving; it consists in professing to believe what he does not believe."
When Muslims and Jews allow triune Christians to claim they are monotheists, We do not compromise our beliefs. It is only Chrsitians who decieve themselves. The Hindus do not bother to hide behind the label of "monotheism"....why do Christians? Why claim you believe in the Jewish Shema when you well know you do not?
However, YO, you are also correct that the way forward in finding "common ground" is not in what we believe, but what we do-----when we concentrate on this aspect of our religions-----the aspect that helps us be better human beings, we can all find ways to co-operate with each other to build better selves and a better world.......