Here, I. God encourages Moses to go to Pharaoh, and at last silences all his discouragements. 1. He clothes him with great power and authority (Exo 7:1): I have made thee a god to Pharaoh; that is, my representative in this affair, as magistrates are called gods, because they are God's viceregents. He was authorized to speak and act in God's name and stead, and, under the divine direction, was endued with a divine power to do that which is above the ordinary power of nature, and invested with a divine authority to demand obedience from a sovereign prince and punish disobedience. Moses was a god, but he was only a made god, not essentially one by nature; he was no god but by commission. He was a god, but he was a god only to Pharaoh; the living and true God is a God to all the world. It is an instance of God's condescension, and an evidence that his thoughts towards us are thoughts of peace, that when he treats with men he treats by men, whose terror shall not make us afraid. 2. He again nominates him an assistant, his brother Aaron, who was not a man of uncircumcised lips, but a notable spokesman: "He shall be thy prophet," that is, "he shall speak from thee to Pharaoh, as prophets do from God to the children of men. Thou shalt, as a god, inflict and remove the plagues, and Aaron, as a prophet, shall denounce them, and threaten Pharaoh with them." 3. He tells him the worst of it, that Pharaoh would not hearken to him, and yet the work should be done at last, Israel should be delivered and God therein would be glorified, Exo 7:4, Exo 7:5. The Egyptians, who would not know the Lord, should be made to know him. Note, It is, and ought to be, satisfaction enough to God's messengers that, whatever contradiction and opposition may be given them, thus far they shall gain their point, that God will be glorified in the success of their embassy, and all his chosen Israel will be saved, and then they have no reason to say that they have laboured in vain. See here, (1.) How God glorifies himself; he makes people know that he is Jehovah. Israel is made to know it by the performance of his promises to them (Exo 6:3), and the Egyptians are made to know it by the pouring out of his wrath upon them. Thus God's name is exalted both in those that are saved and in those that perish. (2.) What method he takes to do this: he humbles the proud, and exalts the poor, Luk 1:51, Luk 1:52. If God stretch out his hand to sinners in vain, he will at last stretch out his hand upon them; and who can bear the weight of it? II. Moses and Aaron apply themselves to their work without further objection: They did as the Lord commanded them, Exo 7:6. Their obedience, all things considered, was well worthy to be celebrated, as it is by the Psalmist (Psa 105:28), They rebelled not against his word, namely, Moses and Aaron, whom he mentions, v. 26. Thus Jonah, though at first he was very averse, at length went to Nineveh. Notice is taken of the age of Moses and Aaron when they undertook this glorious service. Aaron the elder (and yet the inferior in office) was eighty-three, Moses was eighty; both of them men of great gravity and experience, whose age was venerable, and whose years might teach wisdom, v. 7. Joseph, who was to be only a servant to Pharaoh, was preferred at thirty years old; but Moses, who was to be a god to Pharaoh, was not so dignified until he was eighty years old. It was fit that he should long wait for such an honour, and be long in preparing for such a service.

The first time that Moses made his application to Pharaoh, he produced his instructions only; now he is directed to produce his credentials, and does accordingly. 1. It is taken for granted that Pharaoh would challenge these demandants to work a miracle, that, by a performance evidently above the power of nature, they might prove their commission from the God of nature. Pharaoh will say, Show a miracle; not with any desire to be convinced, but with the hope that none will be wrought, and then he would have some colour for his infidelity. 2. Orders are therefore given to turn the rod into a serpent, according to the instructions, Exo 4:3. The same rod that was to give the signal of the other miracles is now itself the subject of a miracle, to put a reputation upon it. Aaron cast his rod to the ground, and instantly it became a serpent, Exo 7:10. This was proper, not only to affect Pharaoh with wonder, but to strike a terror upon him. Serpents are hurtful dreadful animals; the very sight of one, thus miraculously produced, might have softened his heart into a fear of that God by whose power it was produced. This first miracle, though it was not a plague, yet amounted to the threatening of a plague. If it made not Pharaoh feel, it made him fear; and this is God's method of dealing with sinners - he comes upon them gradually. 3. This miracle, though too plain to be denied, is enervated, and the conviction of it taken off, by the magicians' imitation of it, Exo 7:11, Exo 7:12. Moses had been originally instructed in the learning of the Egyptians, and was suspected to have improved himself in magical arts in his long retirement; the magicians are therefore sent for, to vie with him. And some think those of that profession had a particular spite against the Hebrews ever since Joseph put them all to shame, by interpreting a dream which they could make nothing of, in remembrance of which slur put on their predecessors these magicians withstood Moses, as it is explained, Ti2 3:8. Their rods became serpents, real serpents; some think, by the power of God, beyond their intention or expectation, for the hardening of Pharaoh's heart; others think, by the power of evil angels, artfully substituting serpents in the room of the rods, God permitting the delusion to be wrought for wise and holy ends, that those might believe a lie who received not the truth: and herein the Lord was righteous. Yet this might have helped to frighten Pharaoh into a compliance with the demands of Moses, that he might be freed from these dreadful unaccountable phenomena, with which he saw himself on all sides surrounded. But to the seed of the serpent these serpents were no amazement. Note, God suffers the lying spirit to do strange things, that the faith of some may be tried and manifested (Deu 13:3; Co1 11:19), that the infidelity of others may be confirmed, and that he who is filthy may be filthy still, Co2 4:4. 4. Yet, in this contest, Moses plainly gains the victory. The serpent which Aaron's rod was turned into swallowed up the others, which was sufficient to have convinced Pharaoh on which side the right lay. Note, Great is the truth, and will prevail. The cause of God will undoubtedly triumph at last over all competition and contradiction, and will reign alone, Dan 2:44. But Pharaoh was not wrought upon by this. The magicians having produced serpents, he had this to say, that the case between them and Moses was disputable; and the very appearance of an opposition to truth, and the least head made against it, serve those for a justification of their infidelity who are prejudiced against the light and love of it.