Among the many remarkable features of the Qur’an is the precision with which it chooses its words. Sometimes an entire scene, and even the emotional state of its characters, can be transformed through the use of a single expression. One such example appears in the story of Prophet Mūsā (as) at one of the most dramatic moments in his mission.
As Mūsā and the Children of Israel reached the sea, Pharaoh’s army was rapidly approaching from behind. The sea stretched before them, leaving no visible route of escape. Faced with what appeared to be certain capture, his followers cried out:
إِنَّا لَمُدْرَكُونَ
"Indeed, we are surely going to be overtaken." (Qur'an 26:61)
From a purely human perspective, their conclusion was entirely understandable. Every apparent means of escape had disappeared, and the enemy was closing in.
Mūsā’s response, however, begins with a single word:
كَلَّا إِنَّ مَعِيَ رَبِّي سَيَهْدِينِ
"By no means! Indeed, my Lord is with me; He will guide me." (Qur'an 26:62)
A Single Word with Remarkable Force
The rhetorical beauty of this response lies in its opening word: kallā.
In Arabic, kallā is far stronger than a simple “no.” Classical scholars describe it as a particle of zajr wa radʿ—a word of firm rejection, restraint, and decisive dismissal. It does not merely disagree with what has just been said; it rejects the very assumption upon which that conclusion is based.
Before Mūsā speaks about Allah’s guidance, he first dismisses the belief that defeat is inevitable. The companions had looked at the circumstances around them and concluded that capture was certain. Mūsā looked beyond those circumstances and rejected that conclusion entirely.
Only then does he explain the reason for his certainty:
“Indeed, my Lord is with me; He will guide me.”
Certainty Before the Miracle
What makes Mūsā’s response all the more remarkable is that nothing had yet changed. The sea had not parted. No path had appeared. There was still no bridge, no boat, and no visible means of escape. From every outward indication, the situation remained exactly as it had been only moments before.
Yet Mūsā speaks with complete confidence because his certainty is not founded upon what he can see, but upon what he knows of his Lord. His conviction precedes the miracle rather than being produced by it.
A Lesson in Qur’anic Rhetoric
Some scholars have beautifully observed that before Allah parted the sea physically, Mūsā first sought to part the sea of despair that had formed within the hearts of his companions. Whether or not one expresses it in those terms, the rhetorical effect of the verse is undeniable.
The companions speak the language of apparent reality:
“Indeed, we are surely going to be overtaken.”
Mūsā responds with the language of certainty:
“Kallā.”
With that single word, the emotional direction of the narrative changes, where fear gives way to trust, and despair is replaced by confidence in Allah’s promise.
It is observations such as these that form part of the study of Laṭāʾif al-Qur’an. By paying close attention not only to what the Qur’an says, but also to how it says it, we begin to appreciate the extraordinary precision of its language and the profound rhetorical power contained within even a single word.