What a wonderful and beautiful sight they are. What a wonderful promise they represent.
When God showed Noah the first rainbow, He said it would be His sign of a promise. We can see a rainbow and be reminded of His faithfulness. He promised that fall, winter, spring and summer would come and go as long as the earth remains. And we know that they have and will continue in His control.
“Then Noah built an altar to the LORD and took some of every clean animal and some of every clean bird and offered burnt offerings on the altar. And when the LORD smelled the pleasing aroma, the LORD said in his heart, “I will never again curse the ground because of man, for the intention of man’s heart is evil from his youth. Neither will I ever again strike down every living creature as I have done. While the earth remains, seedtime and harvest, cold and heat, summer and winter, day and night, shall not cease.” Genesis 8:20-22 ESV