Surah 26. Ash-Shuara, Ayah 13

Cf. {20:25-34} and the corresponding notes. In the present context, stress is laid on the deep humility of Moses, who considered himself incapable of fulfilling the task for which he had been chosen, and asked God to entrust it to Aaron instead.

As we should say in English, "My heart would fail me, and my tongue cleave to my mouth." Moses had an impediment in his speech, and his mission was risky: see next note. But Allah's Plan works in wondrous ways. Aaron was given to assist him in his mission, and Moses's shortcomings were transformed by Allah's grace into power, so that he became the most powerful leader of Israel.