Al Baqarah Ayah 14

وَإِذَا لَقُواْ ٱلَّذِينَ ءَامَنُواْ قَالُوٓاْ ءَامَنَّا وَإِذَا خَلَوْاْ إِلَىٰ شَيَـٰطِينِهِمْ قَالُوٓاْ إِنَّا مَعَكُمْ إِنَّمَا نَحْنُ مُسْتَهْزِءُونَ ١٤ When they meet the believers they say, “We believe.” But when alone with their evil associates they say, “We are definitely with you; we were only mocking.”