2 Peter 2:5 → Genesis 7:1

2 Peter 2:5 recalls Genesis 7:1 — "the LORD said to Noah, 'Go into the ark... because I have found you righteous in this generation'" — and crystallizes Noah's role as "a preacher of righteousness" preserved "among the eight" when God "brought the flood on its ungodly people." The flood-language itself comes from Genesis 6:17, "I will bring floodwaters upon the earth": in the Greek, 2 Peter 2:5 and Genesis 6:17 share the rare pairing of κατακλυσμός ("flood") with ἐπάγω ("bring upon"), while the righteous man and his house ("you and all your family… I have found you righteous") come from 7:1. Peter deploys the flood as the second in a chain of historical judgments (fallen angels, the flood, Sodom) to assure his readers that God both judges the wicked and rescues the godly (2 Pet 2:9). The connection is typological and redemptive-historical: Noah is a real, escalating pattern of the righteous remnant delivered through judgment, and his story advances the unfolding redemptive plan that culminates in Christ. Genesis underscores that Noah's standing was a gift — "I have found you righteous" — and Peter's title "preacher of righteousness" presents him as a herald of the very salvation he embodied, calling his generation to repentance even as the ark was being built (cf. 1 Pet 3:20). The pattern points beyond itself: as the one righteous man and his household were carried safely through the waters of wrath, so the truly righteous One, Christ, secures and shelters his people in the final judgment. Noah's preserved eight thus preach a gospel of grace — God spares not because of accumulated merit but because he counts his own righteous, and brings them safely through.