The Qur’anic Root GH L F

Qulūbunā ghulf: the speakers’ claim, not the Qur’an’s initial description

Al-Baqarah says: “وَقَالُوا قُلُوبُنَا غُلْفٌ بَلْ لَعَنَهُمُ اللَّهُ بِكُفْرِهِمْ فَقَلِيلًا مَا يُؤْمِنُونَ” (wa-qālū qulūbunā ghulfun bal laʿanahumu llāhu bi-kufrihim fa-qalīlan mā yuʾminūn): “They said: Our hearts are enclosed in coverings. Rather, The God has cast them away because of their disbelief; so little do they believe” (Al-Baqarah 2:88).

An-Nisāʾ repeats the same claim: “وَقَوْلِهِمْ قُلُوبُنَا غُلْفٌ بَلْ طَبَعَ اللَّهُ عَلَيْهَا بِكُفْرِهِمْ فَلَا يُؤْمِنُونَ إِلَّا قَلِيلًا” (wa-qawlihim qulūbunā ghulfun bal ṭabaʿa llāhu ʿalayhā bi-kufrihim fa-lā yuʾminūna illā qalīlā): “And their saying: Our hearts are enclosed in coverings. Rather, The God has stamped them because of their disbelief, so they believe only a little” (An-Nisāʾ 4:155).

In both verses, the order of the exchange matters. The Qur’an does not begin by describing their hearts as ghulf; they themselves say:

قُلُوبُنَا غُلْفٌ

Qulūbunā ghulf.

“Our hearts are enclosed in coverings.”

The response then begins with بَلْ (bal, “rather”).

This difference matters. Ghulf is initially the speakers’ own way of explaining their relationship to the message. It is as though they are saying that their hearts are so covered that the words addressed to them cannot enter.

The Qur’an, however, does not accept this explanation as a neutral condition for which they bear no responsibility. In both verses the response is linked to بكفرهم (bi-kufrihim, “because of their disbelief”). In An-Nisāʾ the contrast is even clearer: they say their hearts are covered; the response is “بل طبع الله عليها بكفرهم” (bal ṭabaʿa llāhu ʿalayhā bi-kufrihim).

The text thus does not detach the claim that their hearts are covered from their own prior conduct.

A parallel within the Qur’an: qulūbunā fī akinnah

Fuṣṣilat 41:5 presents a very similar image: “وَقَالُوا قُلُوبُنَا فِي أَكِنَّةٍ مِمَّا تَدْعُونَا إِلَيْهِ وَفِي آذَانِنَا وَقْرٌ وَمِنْ بَيْنِنَا وَبَيْنِكَ حِجَابٌ” (wa-qālū qulūbunā fī akinnatin mimmā tadʿūnā ilayhi wa-fī ādhāninā waqrun wa-min bayninā wa-baynika ḥijāb): “They said: Our hearts are in coverings against what you call us to, there is a heaviness in our ears, and between us and you there is a barrier.”

This verse almost unfolds the image of qulūbunā ghulf itself. The heart is covered, hearing is obstructed, and a barrier stands between the two sides. The message is present, but the speakers portray themselves as being in a condition that makes receiving it impossible.

This resemblance is among the strongest pieces of evidence within the Qur’an for understanding ghulf as hearts that are covered and enclosed in sheaths.

Nevertheless, ghulf and akinnah are not complete synonyms. Ghulf evokes a sheath enclosing something; akinnah belongs to another family expressing covering and concealment; ḥijāb is something separating two sides. Their effects on communication may be similar, but each root’s image should be preserved.

One vowel and two very different meanings

The commonly received reading is:

غُلْفٌ

Ghulf.

With a sukūn on the lām: ghulf.

The usual analysis treats ghulf as the plural of aghlaf, just as ḥumr is the plural of aḥmar. On this analysis:

قُلُوبُنَا غُلْفٌ

Qulūbunā ghulf.

Means that our hearts are covered and enclosed in sheaths.

Fuṣṣilat 41:5, with qulūbunā fī akinnah, provides strong Qur’anic support for this analysis.

The history of the language also preserves another possibility. Some grammarians allowed this same form, ghulf with a sukūn, to be a contracted plural of ghilāf. Alongside this analysis, an uncommon reading with a ḍammah on the lām is also reported:

غُلُفٌ

Ghuluf.

This form, ghuluf, can clearly be the plural of ghilāf.

On this analysis, qulūbunā ghulf no longer means that our hearts are covered: the hearts themselves are sheaths or containers for something. The explanation offered in linguistic sources is that our hearts are containers of knowledge; what we need to know is already within them.

Two different semantic fields consequently emerge.

In the first reading, the point is impenetrability: our hearts are covered, and your message cannot reach them.

In the second analysis, the point is capacity and intellectual self-sufficiency: our hearts themselves are vessels of knowledge.

The semantic contrast is striking, but it should not be turned into psychological conclusions beyond the firm evidence. The vowel on the lām alone cannot establish that one group was necessarily “defensive” and another necessarily “arrogant.” What the language permits us to say is that one construction expresses being covered, while the other can express being a vessel for knowledge.

The commonly received reading and the parallel in Fuṣṣilat make the first meaning considerably stronger for the familiar text.

Ghulf, ṭabʿ, and khatm: different images of the heart

Translating all the terms relating to the heart as “sealed” or “closed” flattens the Qur’an’s distinct images. English translations need to preserve these differences.

In GH L F, the central image is a sheath or covering. Something is enclosed within a layer, making contact between the inside and the outside difficult or preventing it altogether.

In An-Nisāʾ 4:155, after the claim qulūbunā ghulf, the Qur’an says:

بَلْ طَبَعَ اللَّهُ عَلَيْهَا بِكُفْرِهِمْ

Bal ṭabaʿa llāhu ʿalayhā bi-kufrihim.

“Rather, The God has stamped them because of their disbelief.”

Here the Qur’an itself uses another root, ط ب ع (Ṭ B ʿ). If ghulf is also translated as “sealed,” the contrast the Qur’an creates between the two images disappears.

خ ت م (KH T M) is another family, evoking closure and a final seal. Certain uses of khatm, ṭabʿ, akinnah, and ghulf may have similar implications, but similar outcomes do not make the words complete synonyms.

In these two verses, the distinction also matters in terms of who is speaking: ghulf is their own claim; ṭabʿ is the Qur’an’s response in An-Nisāʾ.

This has consequences for translation. If the two expressions become “Our hearts are sealed / The God has sealed them,” the verse’s precise exchange disappears.

A sheath is not inherently blameworthy

A sheath is not itself a negative thing. A sword’s sheath protects it, and a covering can preserve something. The criticism of qulūbunā ghulf does not arise from the dictionary meaning of ghilāf, but from its role in this exchange: a heart that should receive the message presents itself as being in a condition the message cannot reach.

This distinction matters because it prevents us from defining GH L F from the outset as “disbelief,” “obstinacy,” or “ignorance.”

The root supplies only the image of covering. The ethical function of that covering in the verse is understood from the context.

The Qur’an does not conceal the cause within ghulf itself: bi-kufrihim occurs in both passages. This allows us to say that the text does not accept the claim of covered hearts as an excuse for an incapacity beyond their control.

There is no need to construct a complete theory of determinism, free will, or the workings of the heart from these two verses. The text makes this much clear: the condition of the heart is not detached from their history of choices and disbelief.

The challenge of translation into English

Translating qulūbunā ghulf as “Our hearts are sealed” is imprecise, because it replaces the image of a sheath with that of another root.

“Our hearts are in sheaths” is very close to the root’s image, but can sound somewhat awkward in contemporary English.

“Our hearts are covered” is more fluent, but weakens the physical image of the sheath.

“Our hearts are enclosed in coverings” strikes a better balance between the two.

Where explanation is appropriate, one could say:

“Our hearts are enclosed in coverings, as though held within sheaths.”

But “We do not understand” or “We cannot grasp your words” does not translate ghulf itself. These are effects of the image of covering in its context.

The same precision allows akinnah in Fuṣṣilat to receive its own appropriate rendering, while ṭabʿ and khatm retain their independent images.

Summary

GH L F is a small root family with a very clear image. A ghilāf is a covering enclosing something, and aghlaf describes something enclosed by such a covering.

The Qur’an uses this family only in qulūbunā ghulf. In the commonly received reading, the strong analysis takes ghulf as the plural of aghlaf: our hearts are covered and enclosed in sheaths. Fuṣṣilat 41:5, with qulūbunā fī akinnah, supports this reading from within the Qur’an itself.

The decisive point is that qulūbunā ghulf is initially the speakers’ own statement. In both instances the Qur’an responds with bal and connects their condition to bi-kufrihim. In An-Nisāʾ, another image, ṭabʿ, is even placed in response to ghulf.

Alongside this reading, another construction is reported in the history of the language, taking ghulf as the plural of ghilāf; the uncommon reading ghuluf makes this possibility clearer. In that case, the hearts are not things inside sheaths but themselves vessels of knowledge. This possibility has linguistic value, but the commonly received reading and the parallel in Fuṣṣilat support the image of being covered for the familiar text.

Fidelity to this physical image prevents ghulf, ṭabʿ, khatm, akinnah, and ḥijāb from all becoming one vague notion of a “closed heart.” The Qur’an uses a distinct image for each, and part of the meaning lies precisely in these differences.

A cautious conclusion for this root is:

GH L F: a family centered on covering and enclosing in a sheath. In the commonly received reading of “قُلُوبُنَا غُلْفٌ” (qulūbunā ghulf), hearts are pictured as things enclosed by a covering. This is the speakers’ own claim; the Qur’an does not accept it as a neutral excuse, and in both occurrences links its response to bi-kufrihim, “because of their disbelief.”