Ayah 1: Qad ‘aflaḥ al-mu’minuun, “Already the Believers succeed.”
Something of interest in the Quran is how rarely it calls its adherents Muslims. Muslim comes from the roots s-l-m, which build words themed around peace, freedom, surrender, and submission. Though the world by and large has settled on the word “Muslim,” the Quran chooses to define its adherents using words built from the roots ‘-m-n, which build words relating to belief, trust, and security. Rather than muslimuun, the Quran far more often calls its adherents mu’minuun or “those who believe.” For the Quran, belief/trust is the defining trait of the adherents. Compare the frequency with which submission appears in the Quran to the frequency with which it mentions belief or those who believe/d and you’ll see the latter is far far more favored as the central issue.
Surah al-mu’minuun, “The Believers,” continues to add to our familiar theme of contrasting those who believe with those who turn over Muhammad’s message. In 118 ayat the lens will pan from the upright character of the believers, to those who refuse to believe in the prophets, to the crookedness of the disbelievers and their fates.