Genesis 3:14 The LORD God said to the serpent, “Because you have done this, cursed are you above all livestock and above all beasts of the field; on your belly you shall go, and dust you shall eat all the days of your life. I will put enmity between you and the woman, and between your offspring and her offspring; he shall bruise your head, and you shall bruise his heel.”
Isaiah 29:4 And you will be brought low; from the earth you shall speak, and from the dust your speech will be bowed down; your voice shall come from the ground like the voice of a ghost, and from the dust your speech shall whisper.
God passes sentence; and he begins where the sin began, with the serpent. The devil’s instruments must share in the devil’s punishments. Under the cover of the serpent, the devil is sentenced to be degraded and accursed of God; detested and abhorred of all mankind: also to be destroyed and ruined at last by the great Redeemer, signified by the breaking of his head. War is proclaimed between the Seed of the woman and the seed of the serpent. It is the fruit of this enmity, that there is a continual warfare between grace and corruption, in the hearts of God’s people. Satan, by their corruptions, buffets them, sifts them, and seeks to devour them. Heaven and hell can never be reconciled, nor light and darkness; no more can Satan and a sanctified soul. Also, there is a continual struggle between the wicked and the godly in this world. A gracious promise is here made of Christ, as the Deliverer of fallen man from the power of Satan. Here was the drawn of the gospel day: no sooner was the wound given, than the remedy was provided and revealed. This gracious revelation of a Saviour came unasked, and unlooked for. Without a revelation of mercy, giving some hope of forgiveness, the convinced sinner would sink into despair, and be hardened. By faith in this promise, our first parents, and the patriarchs before the flood, were justified and saved. Notice is given concerning Christ. 1. His incarnation, or coming in the flesh. It speaks great encouragement to sinners, that their Saviour is the Seed of the woman, bone of our bone, Heb 2:11,14. 2. His sufferings and death; pointed at in Satan’s bruising his heel, that is, his human nature. And Christ’s sufferings are continued in the sufferings of the saints for his name. The devil tempts them, persecutes and slays them; and so bruises the heel of Christ, who is afflicted in their afflictions. But while the heel is bruised on earth, the Head is in heaven. 3. His victory over Satan thereby. Christ baffled Satan’s temptations, rescued souls out of his hands. By his death he gave a fatal blow to the devil’s kingdom, a wound to the head of this serpent that cannot be healed. As the gospel gains ground, Satan falls.(Henry)
From the very beginning Satan is a tempter, liar, and searcher of souls to confound, win over, and lead away from listening to, obeying, and following God. We do well to understand nothing has changed in satan’s determination to destroy God’s communion with mankind and their devotion to Him.