1Sahil B = ""Certainly, Muhammad understood that there were distinct theological differences between Islam and
the other Peoples of the Book. But he saw these differences as part of the divine plan of God, who could
have created a single Ummah if he had wanted to but instead preferred that “every Ummah have its own
Messenger” (10:47). Thus, to the Jews, God sent the Torah, “which contains guidance and light”; to the
Christians, God sent Jesus, who “confirms the Torah”; and finally, to the Arabs, God sent the Quran, which
“confirms the earlier revelations.” In this way, the ideological differences among the Peoples of the Book is
explained by the Quran as indicating God’s desire to give each people its own “law and path and way of
That being said, there were some theological differences that Muhammad considered intolerably
heretical innovations created by ignorance and error. Chief among these was the concept of the Trinity.
“God is one,” the Quran states definitively. “God is eternal. He has neither begotten anyone, nor is he
begotten of anyone” (112:1–3)."-No god but God, Reza Aslan "