The short answer
Lineage is central to salvation because the deepest human problem is not only what we have done but whose we have become. Scripture presents the human condition as a matter of family and belonging: since the Fall, humanity is born into a lineage separated from God, and salvation is God's work of bringing us back into his own. That is why Jesus does not tell Nicodemus to try harder but to be born anew — "unless one is born again he cannot see the kingdom of God" (John 3:3). A new birth is a change of lineage, not merely a change of behaviour or a clearing of the record.
This is one of the clearest places where the Divine Principle sharpens a theme the Bible already carries. If the Fall transmitted a fallen bloodline to all people — the reason we all inherit its effects — then salvation must reach that root and change the lineage itself. As one primary Unification source puts it bluntly, "without changing the blood lineage, you cannot go to heaven." This article traces what lineage means in Scripture, how the Fall corrupted it, why forgiveness alone does not exhaust salvation, and how God changes our lineage back to his own. For the inherited side of the problem, see our companion posts on why we inherit Adam's sin and what original sin is.
What lineage means in the Bible
Lineage — descent, bloodline, whose family you belong to — runs through the whole of Scripture, and it is never a trivial detail. The Bible opens genealogies with deliberate weight, tracing the line from Adam to Noah to Abraham to David, and the New Testament opens Matthew with the genealogy of Jesus precisely to establish which lineage he enters. God's covenant with Abraham is a promise about descendants; the hope of Israel is carried in a line; the Messiah is expected "of the seed of David." To the biblical writers, who your father is and what line you stand in is not incidental to your identity — it largely is your identity.
This is why the New Testament describes salvation using the language of family. Believers are "born, not of blood nor of the will of the flesh nor of the will of man, but of God" (John 1:13). They receive "the Spirit of adoption as sons, by whom we cry, ‘Abba! Father!’" (Romans 8:15). They are grafted, like a wild branch, into a cultivated olive tree so that they share its root (Romans 11:17). Every one of these images is about lineage: leaving one line of descent and being brought into another. Salvation, in this vocabulary, is a change of family, not only a change of standing.
How the Fall passed on a fallen lineage
To see why lineage needs changing, we have to see how it was corrupted. The Divine Principle understands the Fall not as the eating of a literal fruit but as a misuse of love at the root of the human family — a union of the first human ancestors centred on the archangel rather than on God. That first, misdirected love bound humanity to a false parent and severed the intended bond with the true one. The consequence was not merely a bad example set for later generations but an inherited condition, passed down the way life itself is passed down: through the line.
Jesus speaks in exactly these terms when he tells certain hearers, "You are of your father the devil, and your will is to do your father's desires" (John 8:44). That is lineage language — a claim about whose children people had become. The same source quoted above states the fallen condition starkly: humanity was "born with the blood of false parents who were chased out of heaven," a lineage that must be denied and transcended. This is why the problem is universal and why no one escapes it by effort alone: we did not choose the line we were born into, and we cannot leave it by simply behaving better. We explore the mechanics of that inheritance in why we inherit Adam's sin.
Why forgiveness alone is not the whole of salvation
Forgiveness is essential, but it is not the whole of what salvation must accomplish, and the difference matters. Forgiveness addresses guilt — the record of wrongs done. But a lineage separated from God is not primarily a record; it is a relationship and an identity. A pardoned prisoner walks free, yet the pardon does not make him a member of the judge's family. Something more than acquittal is needed to change who one belongs to. This is why the New Testament, having spoken of sins forgiven, keeps going and speaks of a new birth, a new creation, and adoption as children.
Read only as forgiveness, the gospel explains how our sins are covered but not why the New Testament insists we become something we were not before. "If anyone is in Christ, he is a new creation" (2 Corinthians 5:17). "To all who did receive him … he gave the right to become children of God" (John 1:12). These are not decorative flourishes on top of pardon; they describe the deeper work salvation is for. Forgiveness clears the debt; a changed lineage restores the relationship the debt had broken. Holding both together keeps salvation from shrinking into a merely legal transaction — a theme we develop in God's plan of restoration.
How salvation changes our lineage
If the fallen lineage began with the first Adam, the new lineage begins with Christ, whom Paul calls the last Adam and "a life-giving spirit" (1 Corinthians 15:45). Where the first Adam transmitted a line severed from God, Christ opens a line restored to God, and a person enters it not by physical descent but by rebirth. "Unless one is born again he cannot see the kingdom of God" (John 3:3). To be born again is to receive new life from a new source — to be re-parented, so to speak, into the family of God, no longer defined by the line of Adam but by the line of Christ.
Paul's image of grafting captures the mechanism vividly: a branch cut from a wild tree and joined to a cultivated one begins to draw its life from a new root (Romans 11:17-24). The branch does not improve itself; it is joined to a different source and lives from it. So salvation is less like polishing the old self and more like being transplanted — "put off your old self … and put on the new self, created after the likeness of God" (Ephesians 4:22-24). This change is received by faith, sealed in relationship with Christ, and then lived out as the self-centred love of the fallen line is gradually replaced by the God-centred love the original lineage was always meant to carry. For the personal experience of that new birth, see what it means to be born again.
Living as people of a new lineage
A changed lineage is not only a doctrine to affirm but a life to grow into. If we have been brought into God's family, then the family likeness is meant to appear — in the way we love, forgive, and treat one another as brothers and sisters rather than rivals. "See what kind of love the Father has given to us, that we should be called children of God; and so we are" (1 John 3:1). The New Testament expects the new lineage to become visible, not as flawless performance, but as a real and growing reorientation of love from the self toward God and neighbour.
This also reframes the Christian's daily struggle. Sin, in this light, is the pull of the old lineage still at work in us; sanctification is the new lineage steadily taking hold. That is why the Christian life is described as growth, transformation, and bearing fruit rather than mere rule-keeping — the point is to become, more and more, who we now belong to. Understood this way, salvation is not a single legal moment but a restored belonging that reshapes an entire life, and ultimately an entire lineage, back toward the God who is its true source. The wider arc of that restoration is traced in God's plan of restoration.
Frequently asked questions
What does it mean that lineage is central to salvation?
It means the human problem is not only wrong actions to be forgiven but a wrong lineage to be changed. Because the Fall placed humanity in a bloodline separated from God, salvation must reach that root, restoring people into God's own lineage through rebirth. Forgiveness clears the record; a changed lineage restores the relationship, which is why Scripture speaks of being born again and grafted into a new family rather than merely pardoned.
Where does the Bible connect salvation to lineage?
Jesus told Nicodemus, "unless one is born again he cannot see the kingdom of God" (John 3:3), framing salvation as a new birth. John writes that believers are "born, not of blood … but of God" (John 1:13). Paul describes being grafted into a new olive tree (Romans 11) and adopted as children into God's family (Romans 8:15-17). Each image is about lineage and belonging, not only pardon.
How did humanity end up in a fallen lineage?
According to the Divine Principle, the Fall was a misuse of love that bound the first human ancestors to the archangel rather than to God. That severed union placed their descendants in a bloodline rooted in self-centred, fallen love — what Jesus meant by "You are of your father the devil" (John 8:44). Every person since is born into that inherited condition, which is why the problem is universal.
If Jesus forgives sin, why does lineage still matter?
Forgiveness addresses guilt, but a changed lineage addresses identity and belonging. A pardoned criminal is free but not thereby made a son; adoption is a further act. Scripture uses both kinds of language: justification (a legal clearing) and new birth or adoption (a change of family). Reading salvation only as forgiveness explains why sins are covered but not why the New Testament insists believers become a genuinely new creation and children of God.
How is a person's lineage actually changed?
Through rebirth — receiving new life from God through Christ, the second Adam, so that one is no longer defined by the fallen line of the first Adam. The New Testament calls this being born again (John 3), being grafted in (Romans 11), and putting on the new self (Ephesians 4:24). It is received by faith and lived out in transformed love, gradually replacing self-centred love with the God-centred love the original lineage was meant to carry.