II Pet. 2:5

The next example comes from Peter. "And spared not the old world, but saved Noah the eighth person, a preacher of righteousness, bringing in the flood upon the world of the ungodly." As a side note, this is further proof that this "cataclysm" was worldwide. It is foreshadowing of God's future judgment upon the whole Earth. Back then, there was a select few righteous people who God used to spread the message of the coming judgment. At the appointed time, God shut the single door (Jesus Christ) and the ungodly old world had no more chance to repent. God poured out His wrath on this ungodly world, and created a new one through His Godly followers (Gen. 6-9). So it is and will be. (See note on v.9.)