What covenant sign did God set in the sky after Noah’s Ark landed?

After the Flood, Genesis presents a rainbow as the sign of God’s covenant with Noah. The covenant promises that a flood will not again destroy all life on earth in the same way.

Genesis 9 describes God placing the bow in the clouds as a visible reminder of this promise. The sign is connected not only with Noah and his descendants but also with every living creature involved in the covenant narrative.

The rainbow in this story is therefore more than a weather detail. It is a theological symbol of promise and remembrance. In later cultures and modern usage, the rainbow has acquired additional meanings, but the Genesis account specifically links it to the covenant after the Flood.