Second Adam / Last Adam

The Adam-Christ typology runs back through three OT layers. First, Genesis 1:26–28: humanity created in God's image, given dominion over creation, blessed and commanded to multiply and subdue. Second, Genesis 2:7: the LORD God forms man from the dust and breathes into his nostrils — Adam becomes "a living soul." Third, Genesis 3: the failure — the command ignored, the woman deceived, the man eating, the curse pronounced. Genesis 3:15 — the protoevangelium — promises that the seed of the woman will bruise the serpent's head, an early hint of a coming counter-Adam. Augustine, in City of God XIII, treats the Adam narrative as the ground of the entire human condition: "in Adam all die" is not a poetic figure but a structural claim about human solidarity. Irenaeus, in Against Heresies V, develops the recapitulation doctrine — every step the first Adam took toward death will be retraced and undone by the Last Adam toward life. Psalm 8:4–6 keeps the Adam-vocation alive: "thou hast put all things under his feet" — a passage Hebrews 2 will later read as fulfilled in Christ.

Paul makes the typology explicit at two structural points. Romans 5:12–21: as sin entered through one man and death by sin, so grace abounded to many through one man, Jesus Christ; "as by the disobedience of one many were made sinners, so by the obedience of one shall many be made righteous" (v.19). Calvin, on Romans 5, treats the parallel as architectural — every clause about Adam has a counterpart in Christ, and the parallel functions to make the structure of redemption symmetrical to the structure of the fall. 1 Corinthians 15:22: "as in Adam all die, even so in Christ shall all be made alive." Then explicit naming at 1 Cor 15:45: "the first man Adam was made a living soul; the last Adam was made a quickening spirit." Verses 47–49 develop the contrast — first man earthly, second man from heaven; as we have borne the image of the earthly, we shall also bear the image of the heavenly. Hebrews 2:5–9 reads Psalm 8 as fulfilled in Jesus, the man crowned with glory and honor on the other side of suffering. Philippians 2:5–11's hymn, Calvin notes, traces the Last Adam's downward and upward arc.

Irenaeus's recapitulation doctrine remains the deepest classical treatment. Christ retraces the steps of Adam in reverse: where Adam was tested in a garden and failed, Christ is tested in a garden and prevails; where Adam reached for the tree, Christ is hung on the tree; where Adam's disobedience locked the gate, Christ's obedience opens it. Augustine, in City of God XIII, develops the federal-headship implication: the human race stands or falls in two heads — Adam by nature, Christ by grace — and individual destiny is determined by which head one is found under. Calvin, on Romans 5, takes the same structural reading: the imputation of Adam's sin and the imputation of Christ's righteousness operate by the same logic, and to deny one is to deny the other. The title therefore does work the gospel cannot do without: it explains how the obedience of one historical individual can avail for many, and it places the cross inside a cosmic narrative that began at the gates of Eden.

Creation to New Creation (Wave 2) explores this arc in full.