What does Genesis 8:22 mean?
After the previous verse revealed God's commitment to never again curse the earth as He had through the flood or to wipe out humanity and animal-kind in that way, this verse completes God's promise. From this point, throughout the planet's history, the patterns of nature will remain as God has created them. The cycles will continue. Day will follow night. One season will follow another. The world will continue to function predictably according to God's design. This is the grace of God upon all His creation.It is important to notice that this promise begins with "while the earth remains." God doesn't guarantee that the planet in its current form will exist eternally. In fact, at some point in the future, God will re-make the heavens and the earth (Revelation 21:1). But while it does, those who live on earth will enjoy the goodness of the repetition of the days and seasons by God's great mercy on sinful humanity.