8 Then God told Noah and his sons, 9 "I hereby confirm my covenant with you and your descendants, 10 and with all the animals that were on the boat with you-the birds, the livestock, and all the wild animals-every living creature on earth. 11 Yes, I am confirming my covenant with you. Never again will floodwaters kill all living creatures; never again will a flood destroy the earth."
12 Then God said, "I am giving you a sign of my covenant with you and with all living creatures, for all generations to come. 13 I have placed my rainbow in the clouds. It is the sign of my covenant with you and with all the earth. 14 When I send clouds over the earth, the rainbow will appear in the clouds, 15 and I will remember my covenant with you and with all living creatures. Never again will the floodwaters 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 rainbow is the sign of the covenant I am confirming with all the creatures on earth."
Matthew Henry's Commentary on Genesis 9:8-17
Commentary on Genesis 9:8-17
(Read Genesis 9:8-17)
As the old world was ruined, to be a monument of justice, so this world remains to this day a monument of mercy. But sin, that drowned the old world, will burn this. Articles of agreement among men are sealed, that what is promised may be the more solemn, and the doing of what is covenanted the more sure to mutual satisfaction. The seal of this covenant was the rainbow, which, it is likely, was seen in the clouds before, but was never a seal of the covenant till now it was made so. The rainbow appears when we have most reason to fear the rain prevailing; God then shows this seal of the promise, that it shall not prevail. The thicker the cloud, the brighter the bow in the cloud. Thus, as threatening afflictions abound, encouraging consolations much more abound. The rainbow is the reflection of the beams of the sun shining upon or through the drops of rain: all the glory of the seals of the covenant are derived from Christ, the Sun of righteousness. And he will shed a glory on the tears of his saints. A bow speaks terror, but this has neither string nor arrow; and a bow alone will do little hurt. It is a bow, but it is directed upward, not toward the earth; for the seals of the covenant were intended to comfort, not to terrify. As God looks upon the bow, that he may remember the covenant, so should we, that we may be mindful of the covenant with faith and thankfulness. Without revelation this gracious assurance could not be known; and without faith it can be of no use to us; and thus it is as to the still greater dangers to which all are exposed, and as to the new covenant with its blessings.