The Most Beautiful Speech: What the Quran Says About Its Own Words in Surah 39:23

Some books tell you stories; the Quran also tells you what kind of speech it is. It speaks about its own words again and again — calling them healing, light, guidance, mercy, and, in one striking verse, the best of all speech. This dossier follows that self-description through the pages of the Quran, beginning at 39:23 and letting other passages cast light on it.

The Verse Itself: "Allah Has Sent Down the Best of Speech"

The key passage is [39:23]. There the Quran calls itself ahsan al-hadith — literally "the most beautiful speech." The verse describes a book whose verses are mutashabihat — meaning paired, echoing one another — and then repeated (mathani), so that listening hearts tremble and skin softens, and hearts turn soft toward the remembrance of God. The Arabic word hadith here simply means speech or words, and the hasan/aḥsan form means beautiful, best. It is a remarkable moment: a text pausing to say what kind of words these are.

A Book Sent Down, Not Composed Lightly

The Quran insists that its words come by revelation, tanzil — a sending down. [38:29] calls it a blessed Book sent down so that people may reflect on its verses. [47:24] asks whether they do not ponder the Quran, or are hearts locked. [4:82] invites the reader to consider whether, if it were from other than God, contradiction would be found in it. The picture is consistent: speech from above, meant to be turned over slowly, not skimmed.

Truth Has Come: Words That Confirm

The Quran describes itself as haqq — truth. In [17:81] the words "truth has come and falsehood has vanished" appear, and the Quran repeatedly says that it comes confirming what was before it: see [2:97] and [5:48], where it is a watcher, muhaymin, over earlier messages. Its words are not a break in the story of revelation but its continuation and protection.

Speech Different from Poetry and Divination

The Quran's audience in Mecca often tried to classify it. Was it poetry? The Quran answers in [36:69] that the Prophet was not a poet, and in [21:5] it lists the accusations — poetry, sorcery, dreams — and rejects them. In [26:224-227] it distinguishes those who follow poets from those who believe and do righteous deeds. And [69:38-43] is emphatic: this is the word of a noble messenger, not the speech of a soothsayer, kāhin. The verse [39:23] therefore sits inside a long defense of the nature of this speech: it belongs to no category people knew.

Words with Power: Trembling Skins and Soft Hearts

[39:23] does not only praise the speech; it describes its physical and spiritual effect. The same vocabulary appears elsewhere: [8:2] says the hearts of believers tremble when God is mentioned and their faith grows when the verses are recited. [59:21] offers a striking image — had the Quran been sent down upon a mountain, one would see it humbled and split from fear of God. The khashya, reverent awe, is the expected answer of any heart that truly hears.

Healing and Mercy in the Chest

The Quran also calls its words medicine. [17:82] speaks of a healing, shifāʾ, and mercy for the believers from the Quran. [10:57] speaks of a healing for what is within the breasts, and [41:44] repeats: for those who believe it is a guidance and a healing. For those who do not, the same beautiful speech falls on deaf ears — an important balance next to 39:23: the beauty of the words is objective, but its effect depends on the heart receiving it.

Guidance, Light, and Clarity

Three favorite self-descriptions are hudā (guidance), nūr (light), and bayyināt (clear proofs). [2:185] says the Quran was sent down in the month of Ramadan as guidance for humanity, with clear proofs of the guidance and the criterion. [14:1] calls it a Book sent down to bring people out of darknesses into the light. [39:41] and [42:52] place the same words on the lips of the Prophet: a light and a clear Book. Beautiful speech is not ornamental; it illuminates.

The Most Beautiful Story

Alongside ahsan al-hadith, the Quran calls itself aḥsan al-qaṣaṣ — the most beautiful story — in [12:3], where the surah of Joseph is introduced. Narration is part of the beauty: the Quran teaches through lives, delays, reversals. [11:1] describes a Book whose verses are perfected and then detailed from the One who is Wise and Aware. Structure and story both carry the name "best."

The Divine Name at the Start of Every Surah

Part of what makes the speech "most beautiful" is the divine name ar-Raḥmān, the Most Compassionate, opening all but one surah — Bismillāhir-Raḥmānir-Raḥīm. The Quran explicitly says the Compassionate One taught the Quran: [55:1-4]. The beauty of the words flows from the mercy of their source; compassion is not an add-on to the speech but its grammar.

Easy to Remember, Firm to Hold

The Quran describes its own words as mubīn (clear), ʿarabī (in a clear Arabic tongue), and yassarnā (made easy). [54:17] and its echoes — [54:22], [54:32], [54:40] — repeat: We have made the Quran easy for remembrance; is there anyone who will remember? [44:58] says it was made easy upon your tongue so that they might be mindful. The best of speech is thus also the most accessible — its depth invites the scholar, its surface welcomes the child.

A Reminder, Not Coercion

The Quran calls itself dhikr — remembrance — over and over: [15:9] promises that God will guard the Reminder; [74:54-55] says it is a reminder, and whoever wills remembers it; [80:11-12] echoes the same. Crucially, [50:45] states that the Prophet is not to compel anyone; the reminder works only on those who fear. The best of speech persuades, it does not force.

The Water That Brings the Soil Back to Life

The Quran closes its self-portrait with one of its loveliest images: the rain-sent-down word that revives the earth. [29:63] and [16:65] speak of God sending down water to revive dead soil; [13:17] applies this to the word itself — the wholesome word rises like good soil, while the corrupt word scatters like foam. [14:24-25] gives the image directly: a good word is like a good tree, rooted, its branches to the sky, giving fruit in every season. That is what ahsan al-hadith means in practice: words that plant something living in the listener and keep giving.

This self-portrait the Quran paints — beautiful, true, healing, illuminating, easy, unforced, alive — is coherent from beginning to end, and [39:23] gathers it into a single phrase. The invitation of that verse is not merely to admire the words but to let them do what they say they do: soften a heart, open an ear, and bring back to life what had gone dry.