Context: "We should not be like Cain, who was of the evil one and murdered his brother. And why did he murder him? Because his own deeds were evil and his brother's righteous." John interprets Genesis 4 through Genesis 3:15's lens: Cain belonged to the serpent ("of the evil one"), Abel was righteous (seed of the woman). This identifies the spiritual warfare underlying the Cain-Abel narrative and all subsequent persecution of the righteous.
Greek Key Terms:
Connections:
Christological Connection: John provides the theological key to the Abel trajectory: the conflict is cosmic. Cain was "of the evil one"—serpent's seed from Genesis 3:15. Abel was righteous—woman's seed. The enmity God promised plays out in Cain murdering Abel, and continues through history: serpent's seed persecutes woman's seed. Religious leaders who killed Jesus were called "brood of vipers" (Matthew 23:33)—serpent's seed. Christ, the ultimate woman's seed, was murdered by the serpent's seed. But Genesis 3:15 promised the woman's seed would crush the serpent's head. Christ's death was not defeat—it was the heel-bruising that accomplished serpent-crushing (Hebrews 2:14). Abel's blood cried vengeance; Christ's blood accomplished victory.
Connection Method(s): Analogy + Redemptive-Historical Progression — John identifies the cosmic warfare underlying the Abel trajectory: Cain was "of the evil one" (serpent's seed, Gen 3:15), Abel was righteous (woman's seed); this enmity advances through history until Christ, the ultimate woman's seed, is murdered by the serpent's seed but accomplishes the serpent-crushing through His death (Heb 2:14).
Trajectory Table: 002 - Abel (First Martyr)