Genesis 9:13-16

9:13 I will place my rainbow in the clouds, and it will become a guarantee of the covenant between me and the earth. 9:14 Whenever I bring clouds over the earth and the rainbow appears in the clouds, 9:15 then I will remember my covenant with you and with all living creatures of all kinds. Never again will the waters become a flood and destroy all living things. 9:16 When the rainbow is in the clouds, I will notice it and remember the perpetual covenant between God and all living creatures of all kinds that are on the earth.”