al-Ṣaff 61:2-3

Yā ayyuha'lladhīna āmanū lima taqūlūna mā lā tafʿalūn ۝ Kabura maqtan ʿindallāhi an taqūlū mā lā tafʿalūn

"O you who believe! Why do you say what you will not do? That you say what you will not do is a cause of great anger/revulsion in the sight of God."

This is the heart of the sūra. And it is one of the shortest and most comprehensive sentences the Qurʾān frames on the subject of morality. It needs to be dwelt on in detail.

The address is plain: يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ — "O you who believe".

This is the first thing that determines how the verse is read. The verse is not about the hypocrites. When the Qurʾān describes the hypocrites it uses a different language and mentions them in the third person ("and among people there are those who…", al-Baqara 2/8). Here, by contrast, the people of faith are addressed directly, in the second person.

The consequence is this: not doing what one says is not a state outside faith. It is a state into which the believer too may fall; and it is precisely for this reason that the verse uses so harsh a word. The harshness is a harshness directed not at the one outside but at the one inside.

The verse could have begun with a sentence of ruling: "Do not say what you do not do." The prohibitive form could have been used. It is not used.

لِمَ — its origin is li-mā; the alif at the end of the interrogative mā drops when a preposition comes before it. Its meaning: "for what, why?"

In Arabic this is called a question of tawbīkh (reproach): it does not ask for information, it seats the addressee opposite his own deed. And its force lies exactly there. A prohibition comes from outside; a question is answered from inside. When "do not do it" is said, the addressee faces a command; when "why do you do it" is said, he is forced to look for his own justification — and most of the time he finds none that can be defended.

The verse forces the addressee not into defence but into looking at himself.

The expression mā lā tafʿalūn occurs in two consecutive verses, in exactly the same wording. In the Qurʾān a repetition this close always does a piece of work.

The function is this:

That is: first the question is asked, then the ruling is laid down. And as the ruling is laid down the addressee changes: the subject is no longer "you" but the deed itself. The sentence separates from the person and passes over to the behaviour.

This is a meaningful structure in terms of the method (Method) as well: the ruling is given not to the person but to the deed.

The most heavily loaded word in the sūra.

Root م-ق-ت. The word is rendered "hatred", but its place in Arabic is narrower and heavier.

Bughḍ (ب-غ-ض) is a general dislike; it may have no cause, it may be arbitrary, it may be personal. Maqt, by contrast, is the revulsion felt on account of an ugly deed: it has a cause, and its cause is that deed itself. The English word "revulsion" comes closer to it than "hatred" — because revulsion arises from the quality of the thing found revolting, whereas one may hate for no reason at all.

And now comes the word's use in the Arabic of the Jāhiliyya, and it is this above all that shows the weight of the verse.

نِكَاحُ ٱلْمَقْت — "the marriage of maqt". It is transmitted that in the period of the Jāhiliyya this name was given to a man's marrying his father's wife after his father's death; and it is said that a separate name was used for the child born of such a marriage. That is, maqt was the name of a deed that that society found revolting even by its own moral measure.

And when the Qurʾān forbids this practice it uses exactly this word:

"Do not marry the women your fathers married — save what is already past. Truly that is an indecency, a maqt, and an evil way." (al-Nisāʾ 4/22)

The word occurs rarely in the Qurʾān, and the places where it occurs are striking. In one place it is used of this marriage, to which the Jāhiliyya itself had given the name. In another, in a word spoken to those who deny in the hereafter: "God's maqt is greater than your maqt towards yourselves" (Ghāfir 40/10). And here.

And in one further place — in exactly the same wording as the sentence of this verse. In Sūrat Ghāfir it occurs thus:

"Those who dispute about the verses of God without any authority having come to them… كَبُرَ مَقْتًا عِندَ ٱللَّهِ وَعِندَ ٱلَّذِينَ ءَامَنُوا۟" (Ghāfir 40/35)

The same sentence, with a single difference: there وَعِندَ ٱلَّذِينَ ءَامَنُوا۟ ("and in the sight of those who believe") has been added.

Comparing the two occurrences shows how narrowly the caveat in al-Ṣaff is kept:

The difference is meaningful. One who disputes without authority is seen by those who believe as well and is censured in their sight too — the deed is out in the open. Not doing what one says, by contrast, most often goes unnoticed by people, is excused, is even looked on kindly. For this reason the caveat in al-Ṣaff is placed at a single address: ʿindallāh.

That is, the sentence implies this: you cannot learn the weight of this deed from those around you. The measure is not there.

So this is what the verse does: it names the failure to do what one says with the word the language reserves for the deed it finds most revolting.

It is worth thinking about what this means. Not doing what one says is, socially, a light fault. No one is taken to court for it; most of the time it is not even noticed; it is passed over with "he meant well, but it did not come off". The verse rejects this lightness and places the deed beside the things people count heaviest.

The construction of the sentence is this: كَبُرَ (it grew great / how great it is) + مَقْتًا (the specifier, tamyīz) + عِندَ ٱللَّهِ (adverbial) + أَن تَقُولُوا۟ مَا لَا تَفْعَلُونَ (the real subject).

Three things stand out:

First: the verb kabura here expresses taʿajjub (astonishment and horror). In Arabic this form expresses the greatness of a thing with amazement. The Qurʾān uses the same verb this way elsewhere: "How great a word it is that comes out of their mouths!" (al-Kahf 18/5).

Second: maqtan comes as a specifier. The specifier is the element that removes an ambiguity in a sentence: when "how great it is" is said, the question "in what respect?" arises, and the specifier answers it — "in respect of revulsion". So the sentence works like this: this thing is great — great in what? — in its power to revolt.

Third, and most important: the real subject has been thrown to the end of the sentence. The normal order could have been "an taqūlū mā lā tafʿalūna kabura maqtan". The verse states the ruling first, and only then what it is a ruling on. In Arabic this is a technique that builds tension: while the addressee waits, asking "what is so great?", the answer comes.

The caveat عِندَ ٱللَّهِ must not be passed over either. The place of assessment is specified: in the sight of God. That is, among people this behaviour may be looked on kindly, may be counted excusable, may even go unnoticed; the measure is not there.

This verse is constantly mentioned together with another verse in Sūrat al-Baqara. At al-Baqara 2/44 it was said:

"Do you enjoin righteousness upon people and forget yourselves, while you recite the Book? Will you not use your reason?"

Two things were analysed in that section: that the verb is "to forget" (not "you do not do"), and that the verse closes with the root of ʿaql (to bind).

The two do not say the same thing. Seeing their differences explains both better:

The most important difference is in the diagnosis. What is described in al-Baqara is a loss of attention: while the person expounds the truth, he counts the expounding itself as having done it; it does not occur to him that he is an addressee too. As was written in that section: "expounding takes the place of doing."

What is described in al-Ṣaff is not a loss of attention but a divergence: declaration and deed have gone in two different directions. The person has not forgotten what he said; he said it and did not do it.

The second important difference is in the closings. al-Baqara calls out to reason: a-fa-lā taʿqilūn — with a word whose root is "to bind", it says that the knowledge does not bind the person. al-Ṣaff, by contrast, goes not to reason but to the ruling: this thing is revolting in the sight of God.

The two addresses touch two different places. One tries to set understanding in motion; the other lays down a value judgement where understanding does not suffice.

And now let us look at the positive side. al-Baqara 2/177, after giving the long definition of birr (righteousness), closed thus:

أُو۟لَٰٓئِكَ ٱلَّذِينَ صَدَقُوا۟ وَأُو۟لَٰٓئِكَ هُمُ ٱلْمُتَّقُونَ "These are the ones who have been true; and these are the ones who are mindful of God."

As was recorded in that section, صِدْق here carries a particular sense: one whose saying and whose doing agree.

al-Ṣaff 61/2-3 is exactly the negative of this definition. Where al-Baqara enumerates birr and at the end says "these are the ones who ṣadaqū", al-Ṣaff names the reverse of the same measure.

The two together form a pair:

And what is striking is this: at al-Baqara 2/177 ṣidq comes as the result of a long list of righteousness — after faith, giving of wealth, prayer, alms, keeping the covenant and patience have been enumerated, it is said "these are the ones who ṣadaqū". Ṣidq, then, is not one of the items on the list; it is the name for the whole of the list having been carried out.

al-Ṣaff says this from the reverse side: however well the list is enumerated, if it is not done, what comes out is maqt.

Used carelessly, this verse breaks down in two directions. Both must be recorded.

Wrong use 1: "Never say what you cannot do; therefore do not enjoin righteousness."

This cannot be drawn from the verse — because the same Qurʾān lays down the enjoining of righteousness as an obligation. And at al-Baqara 2/44 too, what was criticised was not the enjoining itself but the forgetting of oneself. The verse's solution is not "stop saying" but "start doing".

This distinction matters in practice. A person's looking at his own fault and falling silent serves no purpose but to multiply that fault; for then neither has anything been said nor has anything been done.

Wrong use 2: "This verse is used to silence other people."

This is the most widespread abuse of the verse: invalidating what someone says by asking him "do you do it yourself?" This is an invalid move logically as well — the condition of the speaker does not change the truth of what is spoken.

And the word order of the verse does not permit this use. The address is in the second person: "you". That is, the verse does not give the reader a measure about someone else; it puts a question to the reader himself. The same caveat was entered in the section on al-Baqara 2/44: the structure of the verse is turned towards the one reading it.

What the verse actually establishes is this: a word is an undertaking. To say a thing generates the obligation to do it. The verse does not devalue speech; on the contrary, it makes speech binding.