Quran 9:77 At-Tawbah, ayah 77 of 129

فَأَعْقَبَهُمْ نِفَاقًا فِى قُلُوبِهِمْ إِلَىٰ يَوْمِ يَلْقَوْنَهُۥ بِمَآ أَخْلَفُوا۟ ٱللَّهَ مَا وَعَدُوهُ وَبِمَا كَانُوا۟ يَكْذِبُونَ ۝٧٧

9:77 So He hath made the consequence (to be) hypocrisy in their hearts until the day when they shall meet Him, because they broke their word to Allah that they promised Him, and because they lied.