Genesis 3
Adam and Christ: The Two Heads of Humanity — Romans 5:12-21
Paul's clearest statement of the two representative heads is Rom 5:12-21: "as one trespass led to condemnation for all, so one act of righteousness leads to justification." Death reigned "from Adam," so that all are bound up with him. Augustine built the Western doctrine of original sin on this passage, reading the Latin in quo omnes peccaverunt as "in whom all sinned"; Trent received this, teaching that Adam's sin is transmitted to all and remedied only in Christ. Irenaeus had earlier framed Christ as the new Adam who recapitulates and heals humanity — the Eastern accent on restoration. The two heads structure the whole of redemptive history. The Adam-Christ parallel reaches back to the fall of Gen 3:17-19 and forward to the resurrection harvest of 1Cor 15:22: "as in Adam all die, so in Christ shall all be made alive." Bavinck treats this organic solidarity as the hinge of covenant theology.
The Virgin Birth — Isaiah 7:14 and Matthew 1
Matt 1:22-23 reads the birth of Jesus as the fulfillment of Isa 7:14: "the virgin shall conceive and bear a son, and they shall call his name Immanuel." Matthew hears in Immanuel, "God with us," the whole meaning of the incarnation. Irenaeus saw the virgin birth as the new beginning of humanity, Mary undoing the knot of Eve. Aquinas defended its fittingness: the new creation requires a new origin. The sign given to faithless Ahaz becomes the sign to the world. The Immanuel theme frames the whole Gospel, returning in Matt 28:20, "I am with you always." It connects to the Word made flesh in John 1:14 and to the protoevangelium's promised seed in Gen 3:15.
The Image of God — Genesis 1:26-27
Gen 1:26-27: "Let us make man in our image, after our likeness... male and female he created them." The imago Dei grounds human dignity, dominion, and relationality. Augustine located the image especially in the soul's rational powers, mirroring the Trinity, while Irenaeus distinguished image and likeness, the latter restored by the Spirit. Bavinck argued the whole person, not merely the intellect, bears the image. The plural "let us" has long been read in trinitarian light alongside John 1:26. The image marred at the fall of Gen 3:6-7 is renewed in Christ, the true image of Col 1:15.
The Fall and Original Sin — Genesis 3 and Romans 5
Gen 3:1-7 narrates the first disobedience: the serpent's question, the forbidden fruit, and the eyes that are opened to shame. The harmony of creation fractures in a single act. Augustine's reading of original sin became the West's standard: Adam's guilt and corruption pass to all his offspring. He found its warrant in Rom 5:12, "sin came into the world through one man." Aquinas refined it as the loss of original righteousness. The curse of 3:15-19 sets up the whole drama of redemption, and the Adam of this chapter is the representative head whose trespass Rom 5:18 contrasts with Christ's obedience. The fall is answered by the second Adam.
The Protoevangelium — Genesis 3:15
Gen 3:15, the protoevangelium, promises enmity between the serpent and the woman's offspring: "he shall bruise your head, and you shall bruise his heel." In the midst of the curse, the first gospel is spoken. Irenaeus read the seed of the woman as Christ, who recapitulates and reverses Adam's defeat, and Calvin saw here the fountainhead of all covenant promise. The bruised heel anticipates the cross; the crushed head, the resurrection. The promised seed is traced through the Abrahamic covenant of Gen 15:5 and fulfilled in the woman's son of Gal 4:4. The serpent's final defeat is sealed in Rev 12:9.
New Heavens and New Earth — Revelation 21
Rev 21:1-5 unveils the consummation: "a new heaven and a new earth... the dwelling place of God is with man... and he will wipe away every tear." Redemption ends not in heaven's escape but in a renewed creation. Augustine's City of God ends with this eternal Sabbath, the vision of God face to face, and Bavinck saw the new earth as creation brought to its destined glory. The covenant formula "God with them" reaches its final fulfillment. The renewed creation answers the first creation of Gen 1:1 and reverses the curse of Gen 3:17. The Immanuel promise of Matt 1:23 becomes eternal fact: God dwells with his people forever.