I. Moses objects that in all probability the people would not hearken to his voice (v. 1), that is, they would not take his bare word, unless he showed them some sign, which he had not been yet instructed to do. This objection cannot be justified, because it contradicts what God had said (ch. 3 18), They shall hearken to thy voice. If God says, They will, does it become Moses to say, They will not? Surely he means, "Perhaps they will not at first, or some of them will not." If there should be some gainsayers among them who would question his commission, how should he deal with them? And what course should he take to convince them? He remembered how they had once rejected him, and feared it would be so again. Note, 1. Present discouragements often arise from former disappointments. 2. Wise and good men have sometimes a worse opinion of people than they deserve. Moses said (v. 1), They will not believe me; and yet he was happily mistaken, for it is said (v. 31), The people believed; but then the signs which God appointed in answer to this objection were first wrought in their sight.
God beareth with Moses’ doubting, because he was not altogether without faith.
Verses 1-9 Moses objects, that the people would not take his word, unless he showed them some sign. God gives him power to work miracles. But those who are now employed to deliver God's messages to men, need not the power to work miracles: their character and their doctrines are to be tried by that word of God to which they appeal. These miracles especially referred to the miracles of the Lord Jesus Christ. It belonged to Him only, to cast the power of the devil out of the soul, and to heal the soul of the leprosy of sin; and so it was for Him first to cast the devil out of the body, and to heal the leprosy of the body.
They, &c. Many of the common people, not of the ancients, chap. iii. 18. (Menochius) — He knew that all ought to bring credentials from God, when they come in his name to institute a new order of things. This Moses, Jesus Christ, and the apostles did. Nothing less than a miracle can suffice to guard against imposters, who will never be able to stand this test throughout, in such a manner, but that God will evidently confound their delusive signs, if they should even attempt to work miracles. (Haydock) — Believe the works. (St. John, x. 15; Mark xvi.) (Worthington)
God beareth with Moses’ doubting, because he was not altogether without faith.
1. The rod in his hand is made the subject of a miracle, a double miracle: it is but thrown out of his hand and it becomes a serpent; he resumes it and it becomes a rod again, v. 2-4. Now, (1.) Here was a divine power manifested in the change itself, that a dry stick should be turned into a living serpent, a lively one, so formidable a one that Moses himself, on whom, it should seem, it turned in some threatening manner, fled from before it, though we may suppose, in that desert, serpents were no strange things to him; but what was produced miraculously was always the best and strongest of the kind, as the water turned to wine: and, then, that this living serpent should be turned into a dry stick again, this was the Lord's doing. (2.) Here was an honour put upon Moses, that this change was wrought upon his throwing it down and taking it up, without any spell, or charm, or incantation: his being empowered thus to act under God, out of the common course of nature and providence, was a demonstration of his authority, under God, to settle a new dispensation of the kingdom of grace. We cannot imagine that the God of truth would delegate such a power as this to an impostor. (3.) There was a significancy in the miracle itself. Pharaoh had turned the rod of Israel into a serpent, representing them as dangerous (ch. 1 10), causing their belly to cleave to the dust, and seeking their ruin; but now they should be turned into a rod again: or, thus Pharaoh had turned the rod of government into the serpent of oppression, from which Moses had himself fled into Midian; but by the agency of Moses the scene was altered again. (4.) There was a direct tendency in it to convince the children of Israel that Moses was indeed sent of God to do what he did, v. 5. Miracles were for signs to those that believed not, 1 Cor 14 22.
It was a very great honour that Moses was called to when God commissioned him to bring Israel out of Egypt; yet he is with difficulty persuaded to accept the commission, and does it at last with great reluctance, which we should rather impute to a humble diffidence of himself and his own sufficiency than to any unbelieving distrust of God and his word and power. Note, Those whom God designs for preferment he clothes with humility; the most fit for service are the least forward.
A rod. This alluded to the three states in which the Hebrews had lived in Egypt: 1. As holding the sceptre; 2. as persecuted in a crafty and cruel manner; and 3. as liberated by Moses. (Menochius) — The dragon[serpent] was so terrible as to make even Moses flee. (Philo)