Koranic anti-Christian polemic targets Trinity and incarnation doctrines as excess

Evidence

The same can be said for the Koran’s view of Christianity. The Christian doctrines of the Trinity and incarnation are rejected. … People of the Book, do not transgress the bounds of your religion. Speak nothing but the truth about God. The Messiah, Jesus the son of Mary, was no more than God’s apostle and His Word which He conveyed to Mary: a spirit from Him. So believe in God and His apostles and do not say: “Three.” Forbear, and it shall be better for you. God is but one God. God forbid that He should have a son! His is all that the heavens and the earth contain. God is the all-sufficient Protector. The Messiah does not disdain to be a servant of God, nor do the angels who are nearest to him. — John V. Tolan, Saracens, 250

Categorization

• XREF: Grounds the trope that Islam rejected Christian ‘immodest’ theological claims about God’s nature — parallel to how vault sources frame dogma disputes as identity markers.