Genesis 9:11-13

11I establish my covenant with you: Never again will all life be destroyed by the waters of a flood; never again will there be a flood to destroy the earth.” 12And God said, “This is the sign of the covenant I am making between me and you and every living creature with you, a covenant for all generations to come: 13I have set my rainbow in the clouds, and it will be the sign of the covenant between me and the earth.