2 Peter 2:5

2 Peter 2:5 and spared not the ancient world, but preserved Noah with seven others, a preacher of righteousness, when he brought a flood upon the world of the ungodly;

Expanded Translation

and did not spare (forbear, restrain his wrath from) the ancient (literally, original) world, but guarded and protected (kept in safe custody) Noah along with seven others, a preacher who summoned others to righteous living, when he (God) brought a flood upon the ungodly, impious, and irreverent.

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and spared not the ancient world

Here is Peter's second proof that God punishes the wicked. The wicked antediluvians did not escape! (Compare comments, 1 Peter 3:19-21. See also Matthew 24:37-39.)

but preserved Noah with seven others

His wife, his three sons (Shem, Ham and Japheth) and their wives.

a preacher of righteousness

Kerux (preacher) originally signified a herald or messenger, vested with public authority, who conveyed the official messages of kings, magistrates, military commanders, etc., or who gave public summons or demands on their behalf. Noah was God'S ambassadora proclaimer of the divine word. He was a preacher

of righteousnessa preacher whose message, when adhered to, caused people to be righteous. Thayer defines righteous (dikaiosune), The state of him who is such as he ought to be. the condition acceptable to God. virtue, purity of life, uprightness, correctness in thinking, feeling, and acting.

when he brought a flood upon the world of the ungodly

This act shows that God spared not. Ungodly (asebes, which occurs also in 1 Peter 4:18) refers not to one who is merely irreligious, but who acts, thinks, and lives in contravention of God's commandsa downright sinner. He is destitute of reverential awe toward God, and because of such an attitude he rebels at the attempt of others who would help him out of his sinful state.