The blessing on obedience.
Moses and Aaron, on their return to Egypt in company, carried out exactly the Divine directions, doing neither less nor more. They summoned the elders as commanded (Exodus 3:16); they delivered God's message to them (ib.); they wrought the signs which they had been told to work (Exodus 4:17); they severally kept to their appointed offices; and the result was complete success so far. The elders and people hearkened unto them, believed, gave in their unqualified assent and consent to all that was put before them. And this was according to the promise of God, "they shall hearken to thy voice" (Exodus 3:18). Moses had disbelieved the promise, and exclaimed, "Behold, they will not believe me, nor hearken unto my voice" (Exodus 4:1); but Moses was now proved mistaken. "The foolishness of God is wiser than men" (1 Corinthians 1:25). God knew better than Moses; he was faithful; he kept his word. As Moses and Aaron had been true to him, and followed exactly his commands, so he proved himself true to them, and amply rewarded their obedience. Moses and Aaron were from this time the accepted leaders of the nation.