In Genesis, God set a rainbow as the sign of the covenant after Noah left the Ark. Genesis 9 presents the rainbow as a visible reminder of the promise that a flood would not again destroy all life on Earth.
The covenant is made with Noah, his descendants, and every living creature. It follows Noah’s altar and sacrifice after leaving the Ark. The rainbow therefore marks a theological turning point: the Flood narrative moves from judgment to a promise concerning the future of the world.
The passage does not describe the rainbow as a new physical phenomenon. Instead, it assigns the natural sign a covenant meaning within the story. The text uses the phrase “bow in the cloud,” connecting the sign with storm clouds and the sky.
The rainbow is distinct from the dove Noah sent during the search for dry land. The dove is part of the Ark’s testing sequence, while the rainbow appears later as the covenant sign.