Genesis 9:12-16

And God said, “I will give you something to prove that I made this promise to you. It will continue forever to show that I have made an agreement with you and every living thing on earth. I am putting a rainbow in the clouds as proof of the agreement between me and the earth. When I bring clouds over the earth, you will see the rainbow in the clouds. When I see this rainbow, I will remember the agreement between me and you and every living thing on the earth. This agreement says that a flood will never again destroy all life on the earth. When I look and see the rainbow in the clouds, I will remember the agreement that continues forever. I will remember the agreement between me and every living thing on the earth.”