Genesis 9:8-17 NLT

8 Then God told Noah and his sons,
9 "I am making a covenant with you and your descendants,
10 and with the animals you brought with you -- all these birds and livestock and wild animals.
11 I solemnly promise never to send another flood to kill all living creatures and destroy the earth."
12 And God said, "I am giving you a sign as evidence of my eternal covenant with you and all living creatures.
13 I have placed my rainbow in the clouds. It is the sign of my permanent promise to you and to all the earth.
14 When I send clouds over the earth, the rainbow will be seen in the clouds,
15 and I will remember my covenant with you and with everything that lives. Never again will there be a flood that will destroy all life.
16 When I see the rainbow in the clouds, I will remember the eternal covenant between God and every living creature on earth."
17 Then God said to Noah, "Yes, this is the sign of my covenant with all the creatures of the earth."