Genesis 8:20-22

20Noah built an altar to the Lord. On it he made a burnt offering of each type of clean  animal and clean bird.

21The Lord smelled the soothing aroma. He said to himself, “I will never again curse the ground because of humans, even though from birth their hearts are set on nothing but evil. I will never again kill every living creature as I have just done.

22As long as the earth exists, planting and harvesting, cold and heat, summer and winter, day and night will never stop.”