At the end of Genesis 3, Adam and Eve have been expelled from Eden. The serpent has been cursed, the ground has been cursed, and the first man and woman are already tasting the bitter judgments of sin.
But even in judgment, God spoke promise: two seeds, two lines, and a perpetual enmity—an antithesis—between the seed of the woman and the seed of the serpent (Gen. 3:15).
In Genesis 4 we saw that antithesis on full display—not only in Cain’s murder of Abel, but from the beginning of the chapter to the end.
Recap (Genesis 4)
1) A tale of two brothers (vv. 1–16)
- Two beginnings: Eve bears Cain, then Abel. Scripture even hints early that God’s chosen line is not always the one we would expect.
- Two offerings: Cain brings an offering from the fruit of the ground; Abel brings the firstborn of his flock.
- The crucial difference: The text says the Lord had regard for Abel and his offering, but not for Cain and his offering. The issue is not merely the gift—it is the worshiper.
- Accepted by faith: Hebrews 11:4 interprets the moment for us: “By faith Abel offered… a more acceptable sacrifice.” Cain was not rejected because his work wasn’t impressive; he was rejected because he did not come in faith.
- A warning from God: The Lord confronts Cain with mercy and truth: “Sin is crouching at the door… and you must rule over it.”
- The first murder: Cain rises up and kills his brother—how quickly sin moves from the garden to bloodshed.
- Cain’s curse and God’s restraint: Cain is cursed from the ground and becomes a wanderer, yet God restrains vengeance by placing a mark upon him.
2) Lamech: the seed of the serpent maturing (vv. 17–24)
- Cain’s line builds a city and advances culture and technology—yet the heart remains corrupt.
- Lamech multiplies sin: he violates God’s marriage pattern with polygamy, and then boasts in violent vengeance—turning wickedness into poetry.
3) A godly seed remains (vv. 25–26)
- God appoints Seth in place of Abel.
- The chapter ends with hope: the Lord preserves a people.
- We considered that the phrase “people began to call upon the name of the LORD” may highlight not merely that prayer began, but that the godly line began to be identified by Yahweh’s name—a people marked out as belonging to the Lord.
The main takeaway
Genesis 4 sobers us: the fall is not a bruise that heals with time—it is a cancer that spreads.
But Genesis 4 also steadies us: the seed of the serpent may rage, but it does not reign. God keeps His promise. He preserves a line. He keeps a people for His name.
And the chapter presses a personal question:
Where is your confidence before God?
Cain warns us that outward religion can be empty. Abel shows us that God regards those who come by faith.
Gospel connection
Abel’s blood cried out from the ground for justice. But Scripture tells us there is blood that speaks a better word:
“Jesus… and the sprinkled blood that speaks a better word than the blood of Abel.” (Heb. 12:24)
Christ’s blood does not cry out for vengeance against His people—it cries out for forgiveness.
Reflection and Preparation
Day 1 — Faith that God Regards
Read: Genesis 4:3–5; Hebrews 11:4
- God’s acceptance is never earned by impressive religious effort.
- Abel’s offering was accepted because Abel came by faith.
Questions (adults):
- What does it mean that God had regard for Abel and his offering?
- Where are you tempted to trust “doing the right things” instead of trusting Christ?
- How does Hebrews 11:4 protect us from turning worship into a works-based system?
Questions (children):
- Whose offering did God accept?
- What does it mean to trust God?
- Can we make God love us by being “good enough”? Why not?
Day 2 — Sin Crouches at the Door
Read: Genesis 4:6–7; James 1:14–15
- God warns Cain before Cain falls further.
- Sin grows: desire → action → death.
Questions (adults):
- What does “sin is crouching at the door” picture for you?
- Where do you see sin trying to master you through anger, envy, or self-pity?
- What does it look like, practically, to “rule over it” (repentance, prayer, accountability)?
Questions (children):
- What was Cain feeling when God talked to him?
- What should you do when you feel angry or jealous?
- Who can help you fight sin?
Day 3 — The Antithesis in One Family
Read: Genesis 4:8–12; 1 John 3:11–12
- The enmity of Genesis 3:15 shows up immediately: two brothers, two ways.
- John says Cain murdered Abel because Abel’s works were righteous.
Questions (adults):
- Why does righteousness sometimes provoke hostility?
- How does this passage help you interpret conflict without becoming cynical or fearful?
- Where do you need to guard your heart from Cain-like resentment?
Questions (children):
- What did Cain do to Abel?
- Was that pleasing to God?
- What should we do instead of hurting someone when we’re upset?
Day 4 — A Better Word Than Abel
Read: Hebrews 12:22–24
- Abel’s blood cried out for justice.
- Jesus’ blood speaks a better word: forgiveness, cleansing, peace with God.
Questions (adults):
- In what ways do you see Abel’s blood as a witness to the seriousness of sin and God’s commitment to justice?
- What does it mean that Jesus’ blood “speaks” (i.e., testifies, pleads, announces) on your behalf?
- Where are you most tempted to believe you must “pay for” your sin—emotionally, relationally, or spiritually?
Questions (children):
- Why did Jesus die?
- What does Jesus’ blood do for sinners who trust Him?
- When you sin, can you ask God to forgive you because of Jesus?
Day 5 — Preparing for Genesis 5: The Godly Line
Read: Genesis 5:1–8
- Genesis 5 reminds us that death is real (“and he died”), but so is God’s faithfulness.
- God preserves a line—not because the line is strong, but because His promise is sure.
Questions (adults):
- What stands out to you in the repeated phrase “and he died”?
- Why does Scripture record genealogies—what is God teaching us through them?
- How does God’s preservation of Seth’s line encourage you in a dark world?
Questions (children):
- What is a family line (a genealogy)?
- Does God forget His people?
- Why is it good that God keeps His promises?
Hymns for next Lord’s Day
23 Immortal, Invisible, God Only Wise
535 No Not Despairingly
495 Guide Me O Thou Great Jehovah
May the Grace of Christ, Our Savior
May the Grace of Christ Our Savior
John Newton
May the grace of Christ our Savior
And the Father’s boundless love,
With the holy Spirit’s favor,
Rest upon us from above!
May we walk with Christ our Savior
Worthy of our calling sure
Trusting in His boundless favor
For He has declared us pure.
Thus may we abide in union
With each other, and the Lord;
And possess, in sweet communion,
Joys which earth cannot afford.
Looking ahead: Next Lord’s Day
Sermon Text: Genesis 5:1–31
Sermon Title: The Genesis of the Godly Line
Genesis 5 will trace the line from Adam through Seth. In a world marked by death (“and he died… and he died…”), God will show Himself faithful to preserve His people and to carry forward His promise.
God bless!
Pastor Mike