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, Hebrews 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.
Taken From Matthew Henry’s Concise Commentary.