Al-Mu'min

The root. Al-Mu'min comes from a-m-n, the root behind amn (safety), īmān (faith), and amāna (trust, something entrusted). Across its words, the root points to a settled security — the state of trusting something because it cannot fail you, and the state of being trusted because you will not fail others. Al-Mu'min is the active-participle form of the same word Arabic uses for "believer," but naming Allah with it reverses the usual direction: a believer is one who has placed trust; this name describes the one who grants the very safety and certainty that trust rests on.

What it means here. Al-Mu'min is read in two connected senses: the one who instills security and reassurance in the hearts of His creation, and the one who confirms and vouches for the truth of what He reveals to His messengers — a witness to His own word. It stands beside As-Salam, the name just before it in the Quran's cluster: As-Salam is the source of peace and soundness in Himself, while Al-Mu'min is the active granting of security and the guaranteeing of truth to others.

Where it is met. Al-Mu'min is named in the same verse of Surah al-Hashr as Al-Malik, Al-Quddus, and As-Salam. Because the root also gives Arabic its ordinary word for "believer," it is one of the most frequently occurring roots in the Quran overall, though most of those occurrences describe people rather than name Allah — the name itself belongs to this one verse.