Quran 5:72 — The Feast (Al-Ma'edah)

Pagans indeed are those who say that GOD is the Messiah, son of Mary. The Messiah himself said, "O Children of Israel, you shall worship GOD; my Lord and your Lord." Anyone who sets up any idol beside GOD, GOD has forbidden Paradise for him, and his destiny is Hell. The wicked have no helpers.

[5:71] They thought that they would not be tested, so they turned blind and deaf, then GOD redeemed them, but then many of them turned blind and deaf again. GOD is Seer of everything they do.

[5:73] Pagans indeed are those who say that GOD is a third of a trinity. There is no god except the one god. Unless they refrain from saying this, those who disbelieve among them will incur a painful retribution.