Yet another Flood question.
Jesus and Peter used the story of Flood to illustrate how God will destroy hundreds of millions of evil people again. (Let's assume they really said/wrote the things recorded in 2 Peter 2:5 and Mathew 24:38).
However, just after the Flood God promised:
" My rainbow I do give in the cloud, and it must serve as a sign of the covenant between me and the earth. (...) N o more will the waters become a deluge to bring all flesh to ruin."
What was the point of making this promise, if God's now going to bring all flesh to ruin, anyway?
Did God really mean something along these lines:
"This big water thing was really a pain the... Took so much time to sort things out after the whole thing was supposed to be over! I finally ended up having to miraculously multiply the population of humans and animals. And what really, really s**ks is that I had to allow hyper-speed evolution to ensure the pre-flood variety of species. I mean how are those young earth creationists in the 20th-21st century going to refute evolution now? I really have to think of another way of bringing all flesh to ruin.... Should have listened to Michael whe he said it ain't gonna work..."
Ok, I'm getting carried away, but you get my point.
Was this how Noah and his family + readers of Genesis were supposed to understand God's promise? Or did Jesus and Peter miss something?