Al-Ma'idah 5:14

Wamina allatheena qaloo innanasara akhathna meethaqahumfanasoo haththan mimma thukkiroobihi faaghrayna baynahumu alAAadawata walbaghdaaila yawmi alqiyamati wasawfa yunabbi-ohumu Allahubima kanoo yasnaAAoon

And from those who say, "We are Christians" We took their covenant; but they forgot a portion of that of which they were reminded. So We caused among them animosity and hatred until the Day of Resurrection. And Allāh is going to inform them about what they used to do.

And from those who say, “We are Christians,” We took a pledge. So, they have overlooked a good deal of the Advice they were given. So, We had them stuck with enmity and malice among them right through the Day of Doom, and (then) Allah will tell them what they were doing.