11. Who hath made man’s mouth? Here the cause is expressed, why the hesitation of Moses was worthy of reprehension; viz., because arrested by his own infirmity, he did not look up to God, who, being above the want of any human aid, easily accomplishes whatsoever He has decreed, and subduing all the obstacles which terrify men, obtains in any direction assistance according to his will. Moses objects his stammering as a cause for holding back; God replies, that it is He alone who governs the tongue which He has created; therefore, that if some be tongueless or dumb, and some quick and eloquent of speech, the difference is all of His good pleasure. Whence it follows that all nature (as it is called) is subject to his government, so that He easily finds means of the things that are not; and, on the other hand, remove far out of the way whatever impediments interpose, and even forces them into obedience. But He not only asserts his right and power of government in the general course of nature, but teaches that it is of His special grace alone that some exceed others in eloquence; and not only so, but that it is in His hand to make wonderful changes, so as to strike the most eloquent dumb, and to fit the tongue of the dumb for speaking. And this experience also shews, that sometimes those who excel in readiness of speech, want words; and, on the contrary, that the stammering and slow of speech plead a single cause with admirable dexterity, although the power may be wanting to them in every other case. Since, then, it is in God’s power to bind or to loose men’s tongues at any moment, it was wrong of Moses to hesitate, as if in surprise, because he possessed not natural freedom of speech; as if it were not possible for the author of nature to remedy this disadvantage. But while it is good to magnify the immense power of God, in removing all the hinderances which oppose us, so must we beware of resting upon it indiscriminately, as though it were subject to our fancies. For we see men, whilst they too boldly undertake whatever their own lusts suggest, shielding themselves with this thought, that all means and events are in God’s hands, so that nothing may stand in the way of their impetuosity. But the power of God is basely profaned by this rashness; and, therefore, this truth is not duly applied to its legitimate purpose, unless a vocation and command clearly invites us on. We must, then, mark the connection: Go, where I shall send thee. Am I not Jehovah, who gives to men speech, and sight, and hearing? the tendency of which is, that Moses, confidently trusting to the bounty of God, should devote himself earnestly to his work.