Quran 56:46 from Surah Al-Waaqia on Divine Marvels.
وَكَانُواْ يُصِرُّونَ عَلَى ٱلۡحِنثِ ٱلۡعَظِيمِ
English translation: And were persisting in the sin the great
Transliteration: wakanu yusirruna ala al-hinthi al-'azimi