Today the rainbow represents diversity, but God gave it as a sign to never bring another worldwide flood. Why severe judgment? Because “every imagination of man’s heart was only evil continually.” A Holy God must condemn evil, but Noah found grace. God commanded him to build an ark (a boat). Only those in the ark survived. God warns of future flaming judgment. “But I’m a good person!” Compared to people, but compare yourself to a couple of God’s Commandments: “Don’t lie.” One lie makes you a “liar,” and all “liars” go to the Lake of Fire. Jesus said if you “look with lust” its adultery. Adulterers won’t enter Heaven. You’d be a lying adulterer, regardless of other sins!