"It shall bruise thy head." By head, we are to understand the whole power, subtilty, and destroying nature of the devil; for as in the head of the serpent lieth his power, subtilty, and poisonous nature; so in sin, death, hell, and the wisdom of the flesh, lieth the very strength of the devil himself. Take away sin then, and death is not hurtful: "The sting of death is sin": And take away the condemning power of the law, and sin doth cease to be charged, or to have any more hurt in it, so as to destroy the soul: "The strength of sin is the law" (1 Cor 15:56). Wherefore, the seed, Jesus Christ, in his bruising the head of the serpent, must take away sin, abolish death, and conquer the power of the grave. But how must this be done? Why, he must remove the curse, which makes sin intolerable, and death destructive. But how must he take away the curse? Why, by taking upon Him "flesh," as we (John 1:14); by being made "under the law," as we (Gal 4:4); by being made "to be sin for us" (2 Cor 5:21), and by being "made a curse for us" (Gal 3:10-13). He standing therefore in our room, under the law and the justice of God, did both bear, and overcome the curse, and so did bruise the power of the devil.
"It shall bruise thy head." To bruise is more than to break; he shall quash thy head to death; so he also quashed the heel of Christ; which would, had not his eternal power and Godhead sustained, have caused that he had perished for ever.
"And thou shalt bruise his heel." By these words, a necessity was laid upon Jesus Christ to assume our flesh, to engage the devil therein; and also because of the curse that was due to us for sin, that he might indeed deliver us therefore; even for awhile to fall before this curse, and to die that death that the curse inflicteth: "Christ hath redeemed us from the curse of the law, being made a curse for us." Thus therefore did Satan, that is, by the fruits and effects of sin, bruise, or kill, the flesh of Christ: But he being God, as the Father, it was not possible he should be overcome. Therefore his head remaineth untouched. A man's life lieth not in his heel, but in his head and heart; but the Godhead being the head and heart of the manhood, it was not possible Satan should meddle with that; he only could bruise his heel; which yet by the power of the Godhead of this eternal Son of the Father, was raised up again from the dead: "He was delivered for our offences, and was raised again for our justification" (Rom 4:25).
In these words therefore the Lord God gave Adam a promise, That notwithstanding Satan had so far brought his design to pass, as to cause them by falling from the command, to lay themselves open to the justice and wrath of God; yet his enterprise by grace, should be made of none effect. As if the Lord had said, "Adam, thou seest how the devil hath overcome thee; how he, by thy consenting to his temptation, hath made thee a subject of death and hell: but though he hath by this means made thee a spectacle of misery, even an heir of death and damnation: yet I am God, and thy sins have been against me. Now because I have grace and mercy, I will therefore design thy recovery. But how shall I bring it to pass? Why I will give my Son out of my bosom, who shall in your room, and in your nature encounter this adversary, and overcome him. But how? Why, by fulfilling my law, and by answering the penalties thereof. He shall bring in a righteousness which shall be "everlasting," by which I will justify you from sin, and the curse of God due thereto: But this work will make him smart, he must be made "a man of sorrows," for upon him will I lay your iniquities (Isa 53:6); Satan shall bruise his heel."
Ver. 16. "Unto the woman he said, I will greatly multiply thy sorrow and thy conception; in sorrow[15] shalt thou bring forth children; and thy desire shall be to thy husband, and he shall rule over thee."
"I will greatly multiply thy sorrow," &c. This is true, whether you respect the woman according to the letter of the text, or as she was a figure of the church; for in both senses their sorrows for sin are great, and multiplied upon them: The whole heap of the female sex know the first,[16] the church only knows the second.
"In sorrow shalt thou bring forth children." The more fruitful, the more afflicted is the church in this world; because the rage of hell, and the enmity of the world, are by her righteousness set on fire so much the more.
But again: Forasmuch as the promise is made before this judgment of God for sin is threatened, we must count these afflictions not as coming from the hand of God in a way of vengeance, for want of satisfaction for the breach of the law; but to shew and keep us in mind of his holiness, that henceforth we should not, as at first through ignorance, so now from notions of grace and mercy, presume to continue in sin.
I might add, That by these words it is manifest, that a promise of mercy and forgiveness of sin, and great afflictions and rebukes for the same, may and shall attend the same soul: "I will greatly multiply thy sorrow," comes after the promise of grace.
"And thy desire shall be to thy husband, and he shall rule over thee." Doubtless the woman was, in her first creation, made in subordination to her husband, and ought to have been under obedience to him: Wherefore, still that had remained a duty, had they never transgressed the commandment of God; but observe, the duty is here again not only enjoined, and imposed, but that as the fruit of the woman's sin; wherefore, that duty that before she might do as her natural right by creation, she must now do as the fruits of her disobedience to God. Women therefore, whenever they would perk it and lord it over their husbands, ought to remember, that both by creation and transgression they are made to be in subjection to their own husbands. This conclusion makes Paul himself: "Let [saith he] the woman learn in silence with all subjection. But I suffer not a woman to teach, nor to usurp authority over the man, but to be in silence; for Adam was first formed, then Eve; and Adam was not deceived, but the woman being deceived, was in the transgression" (1 Tim 2:11-14).