Quran 2, Al-Baqara (The Cow) ⓘ

2:93And when We made with you a covenant and caused the Mount to tower above you, (saying): Hold fast by that which We have given you, and hear (Our Word), they said: We hear and we rebel. And (worship of) the calf was made to sink into their hearts because of their rejection (of the covenant). Say (unto them): Evil is that which your belief enjoineth on you, if ye are believers.

وَإِذْ أَخَذْنَا مِيثَاقَكُمْ وَرَفَعْنَا فَوْقَكُمُ الطُّورَ خُذُوا مَا آتَيْنَاكُمْ بِقُوَّةٍ وَاسْمَعُوا قَالُوا سَمِعْنَا وَعَصَيْنَا وَأُشْرِبُوا فِي قُلُوبِهِمُ الْعِجْلَ بِكُفْرِهِمْ قُلْ بِئْسَمَا يَأْمُرُكُمْ بِهِ إِيمَانُكُمْ إِنْ كُنْتُمْ مُؤْمِنِينَ