(Al Hadeed) 57 : 8
وَمَا لَكُمْ لَا تُؤْمِنُونَ بِاللَّهِ ۙ وَالرَّسُولُ يَدْعُوكُمْ لِتُؤْمِنُوا بِرَبِّكُمْ وَقَدْ أَخَذَ مِيثَاقَكُمْ إِنْ كُنْتُمْ مُؤْمِنِينَ
What is the matter with you that you don’t believe with Allah, while the Messenger is calling you to believe with your Lord? And surely He has taken from you the Covenant, if you are believers.
See explanation 3: 81-82, 193; 5: 57; and 48: 10.