Eve and Mary — enemies of Satan
Satan tried to prevent the birth of the Messiah, then to kill him, then to corrupt the gospel. Mary also was Satan's enemy.
These pairs are enemies...
Note: the pronouns "it" and "his" do not imply gender (male) or number (one person vs. many people or a community of people.)
The word "serpent" refers to Satan.
Therefore, these pairs are enemies...
Why in the world would Satan and Eve be enemies? I'll come back to this in a moment.
Phrases to be reckoned-with...
The woman's seed of Genesis 3:15 is Jesus Christ, who is the son of Mary. Here is the linkage of ideas...
The dragon [serpent, v.9] stood before the woman which was ready to be delivered, for to devour her child as soon as it was born. And she [the woman] brought forth a man child, who was to rule all nations with a rod of iron: and her child was caught up unto God, and to his throne. (Revelation 12:4,5)
And there appeared a great wonder in heaven; a woman clothed with the sun, and the moon under her feet, and upon her head a crown of twelve stars: And she being with child cried, travailing in birth, and pained to be delivered. (Revelation 12:1,2)
From Genesis 3:15, these pairs are enemies...
Note: there is no verse in the Bible we can use to identify "the seed of the woman" of Genesis 3:15 with Christ without the link through Mary as the mother of Christ. The passages referring to Christ as the promised seed of Abraham cannot be used because we have no way to cross-link Abraham's promised seed with the woman's seed of Genesis 3:15 unless we first identify Christ as this seed.
Therefore, in identifying Jesus as the seed of Genesis 3:15 we are confronted with Mary as "the woman" who was the mother of Jesus; Mary and Jesus cannot be separated if we limit ourselves to using only the Bible. This provides the basis for certain Catholic Marian doctrines such as Mary as the New Eve, Mother of the Church, Queen of Heaven, Co-redemptrix, Mediatrix of all graces, and Advocate.
The word "seed" refers to a physical descendant. In Genesis 3:15, the seed of Eve is Jesus (as we saw above).
In Satan's case the word "seed" can only refer to a person (or people) who are spiritual descendants of Satan, who are excluded from God's family, who are unredeemed. As an example, those who killed Christ (who bruised his heel) were seeds of Satan.
In highlighting the spiritual seeds of Satan, Genesis 3:15 introduces us to two groups of people: the unredeemed (seeds of Satan) and the redeemed (seeds of the woman, of Christ). This theme pervades the entire Bible.
Revelation 12:17 introduces us to the faithful followers of Christ called the "remnant of the woman's seed" (in the context of Mary as the mother of Christ the Redeemer.) Therefore, in Genesis 3:15 these pairs are enemies...
This raises a few questions...
Genesis 3:15 introduces us to two categories of humans: those who are righteous (the woman's seed), and those who are wicked (Satan's seed).
Satan is not permanently destroyed (crushed) at the resurrection of Christ...
After Satan harms Christ by orchestrating his crucifixion, Christ's resurrection destroys Satan. But this is not the end of Satan until the end of the world when Christ returns to finally defeat Satan once and for all. Once the head of Satan is crushed he is no longer able to destroy those who Christ has come to redeem (those in Abraham's bosom who Christ redeems and those who receive Christ in faith after the resurrection).
The woman's seed destroys the serpent's head, not the serpent itself. Thus, the woman's seed destroys Satan's head, not Satan himself.
What does it mean that Satan bruises the heel of Eve's seed?
From the New Testament we learn that Satan bruised the heel of Jesus who was Eve's descendant.
The word "bruise" is used to indicate harm that is not permanent. Examples...
Yet it pleased the LORD to bruise him; he hath put him to grief: when thou shalt make his soul an offering for sin, he shall see his seed, he shall prolong his days, and the pleasure of the LORD shall prosper in his hand. (Isaiah 53:10)
The Spirit of the Lord is upon me, because he hath anointed me to preach the gospel to the poor; he hath sent me to heal the brokenhearted, to preach deliverance to the captives, and recovering of sight to the blind, to set at liberty them that are bruised. (Luke 4:18, from Isaiah 61:1)
Using Genesis 3:15 to identify the seed of the woman as Abraham's promised seed can only be done by first identifying Christ as the woman's seed. Only then can we discover that the faithful redeemed of Abraham's seed are also the seed of the woman.
This is a problem verse because the word "seed" is clearly used in the book of Genesis in the context of Abraham's promised seed as referring to a multitude of peoples, yet Paul insists that this word refers only to Christ.
Wherefore then serveth the law? It was added because of transgressions, till the seed should come to whom the promise was made; and it was ordained by angels in the hand of a mediator. (Galatians 3:19)
Even those who killed Christ were the physical descendants of Abraham. The question is whether they were also the seed of Satan? It appears that the physical descendants of Abraham can also be the seed of Satan, therefore, the phrase "seed of Satan" refers to the spiritual condition of a person. In like manner, the phrase "seed of the woman" refers to the spiritual condition of the descendants of Eve, which is the entire human race.
It appears that Jesus distinguishes between their being the physical descendants of Abraham, the chosen seed, and the seed of Satan.
They answered him, We be Abraham's seed, and were never in bondage to any man: how sayest thou, Ye shall be made free? Jesus answered them, Verily, verily, I say unto you, Whosoever committeth sin is the servant of sin. And the servant abideth not in the house for ever: but the Son abideth ever. (John 8:33-35)
This covenant between God and the seed of the woman (the faithful redeemed of all ages) extends back from Abraham even to Noah's time. The wicked were killed in the flood and after that some of the descendents of Noah would be numbered among the redeemed, not because they were physical descendants of Noah, but because of their faithfulness to God.
There is a sense in which all the physical descendants of Abraham are his promised seed.
But the true promised seed consists only of the faithful redeemed of all ages.
Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called. That is, They which are the children of the flesh, these are not the children of God: but the children of the promise are counted for the seed. (Romans 9:7,8)
Some of the early church fathers mentioned Mary as the mother of Jesus when considering Jesus as the woman's seed. Thus, the word "woman" can refer to Mary in addition to Eve.
When Jesus therefore saw his mother, and the disciple standing by, whom he loved, he saith unto his mother, Woman, behold thy son! Then saith he to the disciple, Behold thy mother! And from that hour that disciple took her unto his own home. (John 19:26,27)
And I will put enmity between thee [Satan] and the woman [Eve], and between thy [Satan's] seed [the wicked of all ages] and her [Eve's] seed [Christ the redeemer / the faithful redeemed]; it [Christ the seed / the church] shall bruise thy [Satan's] head, and thou [Satan] shalt bruise his [Christ's / the church's] heel. (Genesis 3:15)
It is hard to leave Mary out of this equation. If Eve is the woman from whom Christ comes as the seed, and if the word "seed" also refers to the redeemed in Christ, it is difficult to exclude Mary from this. Therefore, "the woman" of Genesis 3:15 is Mary the mother of Jesus.
Once we establish this then we must make the connection that Satan and Mary are enemies. Implications of this...
And when they were departed, behold, the angel of the Lord appeareth to Joseph in a dream, saying, Arise, and take the young child and his mother, and flee into Egypt, and be thou there until I bring thee word: for Herod will seek the young child to destroy him. (Matthew 2:13)
Then Herod, when he saw that he was mocked of the wise men, was exceeding wroth, and sent forth, and slew all the children that were in Bethlehem, and in all the coasts thereof, from two years old and under, according to the time which he had diligently inquired of the wise men. (Matthew 2:16)
What is Satan's head? Does Satan even have a head at all?
What does it mean that Eve's seed will bruise Satan's head?
Genesis 3:15 has some striking implications...