What does the rainbow represent in God’s covenant with Noah in Genesis?

In Genesis, the rainbow represents a sign of God’s covenant with Noah.

After the Flood, Genesis 9 describes a covenant between God, Noah, his descendants, and every living creature. God sets the rainbow in the clouds as a sign that the covenant will be remembered. The promise is that a flood will not again destroy all life on Earth in the same way. The rainbow therefore functions in the story as a visible reminder of a divine promise.

The passage is broader than a private agreement with Noah alone. It explicitly includes future generations and animals. The rainbow’s symbolic meaning in Genesis is also distinct from later cultural or religious uses of rainbow imagery. In the biblical narrative, its immediate context is the post-Flood covenant and the promise concerning a world-destroying flood.