I already answered you

God is One, from Adam to Muhammad, peace be upon them
But people have turned away from worshiping God according to their own whims

God is one and there are not many gods
god has no wife, biological son, or biological son

Christ is the son of God in the figurative sense only because all the prophets are sons of God
The God we worship is (the Father), as Western Christians call him

But Muslims and Christians of the East, call him allah

The truth is that Jesus preached the same message that the Prophets in the Old Testament preached. There is a passage in the Bible which really emphasizes his core message. A man came to Jesus and asked “Which is the first commandment of all?”Jesus answered, “The first of all the commandments is Hear, O Israel, the Lord our God, the Lord is one.’’[Mark 12:28-29]. So the greatest commandment, the most important belief according to Jesus is that God is one. If Jesus was God he would have said ‘I am God, worship me’, but he didn’t. He merely repeated a verse from the Old Testament confirming that God is One.

https://www.youtube.com/watch?v=YW99U4JWNEc

https://www.youtube.com/watch?v=e435omqQib8