Az-Zumar ('The Throngs'), 75 Meccan verses, calls for sincere devotion to God alone and pictures the throngs driven to paradise or the fire at the Judgement. It contains one of the Quran's most quoted verses of hope: 'do not despair of the mercy of God; indeed He forgives all sins' (39:53).
Az-Zumar's title, the Throngs, names the two processions described near its close, the disbelievers driven to hell in groups and the righteous led to paradise in groups whose gates open before them with a greeting of peace (39:71-73), a structure commentators read as the surah's culminating image after chapters of argument for sincere devotion. Verse 39:53, promising that God forgives all sins for those who do not despair of His mercy, is among the most frequently cited verses in Islamic devotional literature and pastoral counsel, read by classical exegetes including al-Qurtubi as addressed even to those who have committed the gravest sins, so long as repentance is genuine, a reading balanced elsewhere in the Quran by verses on accountability. The surah's opening call for sincere devotion, exclusive of any partner in worship (39:2-3), is read by commentators as the surah's organising theme, against which its closing scenes of judgement, and its intervening argument that good and bad cannot be considered equal (39:9), all serve as supporting evidence.