Al Maidah, 14 Ayah
5:14
وَمِنَ ٱلَّذِينَ قَالُوٓاْ إِنَّا نَصَٰرَىٰٓ أَخَذۡنَا مِيثَٰقَهُمۡ فَنَسُواْ حَظّٗا مِّمَّا ذُكِّرُواْ بِهِۦ فَأَغۡرَيۡنَا بَيۡنَهُمُ ٱلۡعَدَاوَةَ وَٱلۡبَغۡضَآءَ إِلَىٰ يَوۡمِ ٱلۡقِيَٰمَةِۚ وَسَوۡفَ يُنَبِّئُهُمُ ٱللَّهُ بِمَا كَانُواْ يَصۡنَعُونَ ١٤
Wa Mina Al-Ladhīna Qālū 'Innā Naşārá 'Akhadhnā Mīthāqahum Fanasū Ĥažžāan Mimmā Dhukkirū Bihi Fa'aghraynā Baynahumu Al-`Adāwata Wa Al-Baghđā'a 'Ilá Yawmi Al-Qiyāmati ۚ Wa Sawfa Yunabbi'uhumu Al-Lahu Bimā Kānū Yaşna`ūna
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 Allah is going to inform them about what they used to do.