6b: The Elder "Lost" Son: Firstborn Replacement (Part 2 of 3)
- Sep 22, 2019
- 4 min read
Updated: Jun 26
Two Sides of the Same Coin
In Part 1 of this series, we learned about the firstborn office — its responsibilities, its permanence, and its failure. We saw how Cain, the firstborn of fallen humanity, failed in his role. And we saw how the same pattern played out on a national level when Israel was called God’s firstborn.
Now we’re going to explore the solution God provided: firstborn replacement.
The Firstborn “Gotten of the Lord”
When Eve gave birth to Cain, she made a remarkable statement: “I have gotten a man, the Lord.” (Genesis 4:1).
This is a curious phrase. Some older commentators — like Luther and Calvin — saw it as a declaration of messianic hope. They believed Eve was looking for the promised Seed who would crush the serpent’s head (Genesis 3:15). She saw her firstborn as the deliverer.
But most modern translations render the Hebrew phrase differently — as “with the help of the Lord” (ESV, NIV, CSB). The grammar of the original language is ambiguous, and scholars have debated its meaning for centuries.[1]
Whether Eve expected the Deliverer or simply acknowledged the Lord’s assistance, her words reveal how deeply she understood the significance of the firstborn role. She knew this son was special. She knew he carried the weight of the family’s future.
She was looking for salvation through her firstborn. And in a sense, she was right — but not in the way she expected. Salvation would come through a different Firstborn, the true Son of God.
The first family was looking for the right thing — but through the wrong son.
The Passover Coincidence
Centuries later, something remarkable happened. God called Israel out of Egypt. He declared them His firstborn son. And He told Moses to confront Pharaoh with these words:
“Thus saith the LORD, Israel is my son, even my firstborn: And I say unto thee, Let my son go, that he may serve me: and if thou refuse to let him go, behold, I will slay thy son, even thy firstborn." (Exodus 4:22-23).
Pharaoh refused. And the firstborn of Egypt died.
But here’s where it gets interesting. Matthew’s Gospel tells us that when Jesus was born, Herod tried to kill Him. Joseph and Mary fled to Egypt. Later, they returned — and Matthew says this fulfilled the prophecy: “Out of Egypt have I called my son” (Hosea 11:1).
Wait — Hosea was talking about Israel, not Jesus.
Two Sides of the Same Coin
This is the key. Israel and Jesus share the same firstborn status. Israel is Jehovah’s firstborn son on a national level. Jesus is Jehovah’s firstborn Son on a personal level. They are two sides of the same firstborn coin.
From the Old Testament perspective, Israel, as Jehovah’s firstborn son, is called out of Egypt and lives because of the blood applied at Passover.
From the New Testament perspective, Jesus, as the Firstborn Son of God, is called out of Egypt to die as the Lamb of God.
Because of Jesus’ blood, Israel lives as one national firstborn body.
The invitation extends to all nations: “Whosoever will” must apply the blood of the Lamb spiritually on the doorposts of their hearts to be “passed over.”
The Firstborn Connection
Now we can see the pattern clearly.
Cain represents the firstborn of all humanity.
Israel represents the firstborn of all nations.
Both need redemption. Both desperately needed the sin-offering. Both were looking for salvation through the wrong means — through their legal position, not through faith in the blood sacrifice.
The first family didn’t understand the two sides of the coin. If they had, they would have realized that the firstborn office had value only because of the sin-offering.
The Two Lines
Remember the two summary statements we explored in earlier articles?
The Christ-line speaks of Christ as the firstborn replacement on a personal level.
The Cain-line speaks of Israel as the firstborn on a national level.
The Cain-line says: “Man, acquired as a dedicated teaching witness, declined as fugitives, smitten by God, who is of God, powerfully humbled as the despairing, leads a joyous jubilee.”
This is Israel’s destiny. One day as one unified national body, they will publicly accept their Messiah. They will lead a joyous jubilee into the Kingdom.
The Firstborn Replacement
Jesus is the true Firstborn. He succeeded where Cain failed. He succeeded where Israel failed. He is the Last Adam — the one who came to restore everything that was lost at the fall.
Through Christ, the eternal inheritance is secured. Through Christ, divine mercy is extended to all sinners — not just the firstborn.
In Part 3, the last part of this series, we’ll continue our discussion by profiling the firstborn of fallen man. We’ll identify the common traits that help us trace the “mark” of the firstborn throughout biblical history.
Reader’s Clue: If Cain and Israel failed in the firstborn role, what does that say about you and me? Are we trusting in our own efforts and position like they did, or are we trusting in the blood of the true Firstborn?
Footnotes
[1]: The Hebrew phrase in Genesis 4:1 (*'et YHWH*) is ambiguous. Most modern translations render it as "with the help of the Lord" (e.g., ESV, NIV, CSB), while some older commentators (e.g., Luther, Calvin) saw it as a messianic declaration. The linguistic debate is old and well-documented; the hopeful interpretation is defensible but not definitive. See Victor P. Hamilton, The Book of Genesis, Chapters 1-17 (NICOT), p. 222, for discussion.
Questions or pushback? I would love to hear from you. Feel free to leave a comment or contact me through the website.
Further Reading:
- Genesis 3:15 (The promised Seed)
- Exodus 4:22-23 (Israel as firstborn)
- Hosea 11:1 (Out of Egypt I called my son)
- Matthew 2:13-15 (The flight to Egypt)
- Galatians 3:16 (The Seed is Christ)
- Romans 11:25-27 (Israel’s future salvation)
For the full, in-depth study, including the technical details and Scriptural evidence, please see my book, “HIS-Story Through HIS-Bloodline: The Genesis Pre-Flood Prophecy of the Ages.” This blog article is a simplified introduction to the concepts explored in depth therein.
© 2023-2026 Cindy Lyons. All rights reserved. Adapted from HIS-Story Through HIS-Bloodline: The Genesis Pre-Flood Prophecy of the Ages.
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