The Prophet ﷺ was given only one warning-tool: revelation. The Lord did not arm him with thunder; He armed him with verses.

The Prophet ﷺ in Makkah was, by every external metric, failing. Thirteen years of preaching. A small community of believers, persecuted, tortured, some killed. Quraysh's nobles dismissing him publicly. Khadījah dying. Abū Ṭālib dying. The Prophet ﷺ grieving in a way Allah noticed and addressed directly. And in this period, the Quraysh repeatedly demanded miracles. The classical mufassirūn note that the demand was not in good faith; the moon-splitting had not moved their hearts. The demand was the disbelievers' delaying tactic. And Allah, in this sūrah, addresses the Prophet ﷺ with a verse that does two things at once. First, He defines the Prophet's ﷺ role: 'Say: I warn you only through the Revelation.' The Qurʾan was the miracle. The revelation itself, in its language, its rhythm, its argumentative coherence, its inimitable beauty, was the sign Allah gave Arabia and humanity. And second, Allah names the structural limit of revelation: 'and the deaf do not hear the call when they are warned.' The deaf is the heart-state of those who closed themselves before the verses arrived. Allah is telling the Prophet ﷺ: this is not your failure. The deaf-of-heart do not hear; you delivered the warning correctly; the responding is between them and Me. Now consider the two applications for the believer today. The first is for the one who carries daʿwah. The disease is taking responsibility for others' response. The believer presents; the receiver does not respond; the believer feels he failed. Allah's verse rebuts this. 'Innamă anrurukum bi-l-waḥy'. I only warn you by revelation. The Prophet ﷺ was given the Qurʾan and was responsible for delivering it; he was not responsible for ensuring all listeners would believe. The Qurʾan instructs him repeatedly: 'You cannot guide whom you love' (28:56). The responsibility-zone is defined. Deliver the message clearly. The reception is Allah's domain. The second application is for the believer concerned about his own heart's softness. The deaf-of-heart did not begin deaf; they became so by repeated refusal. Each time a verse was offered and refused, the heart hardened a little. The believer fearing this in himself must do the inverse: when a verse moves you, act on it; when a counsel reaches you, take it; when a warning sounds, attend to it. Each acceptance is a small softening. The Prophet ﷺ would pray often: 'Yă muqalliba al-qulūb, thabbit qalbī ʿalā dīnik' (Tirmidhī 2140). O Turner of hearts, steady my heart on Your religion. Pray today: Allāhumma 'ajʿalnī min al-lădhinaa yastamiʿu al-qawla fa-yattabiʿu aḥsanahu, wa-lā tajʿalnī maʿa al-ṣumm. O Allah, make me of those who hear the word and follow the best of it; do not place me with the deaf-of-heart.