Genesis 9:12

These divine purposes of peace, which were communicated to Noah while sacrificing, were solemnly confirmed by the renewal of the blessing pronounced at the creation and the establishment of a covenant through a visible sign, which would be a pledge for all time that there should never be a flood again. In the words by which the first blessing was transferred to Noah and his sons (Gen 9:2), the supremacy granted to man over the animal world was expressed still more forcibly than in Gen 1:26 and Gen 1:28; because, inasmuch as sin with its consequences had loosened the bond of voluntary subjection on the part of the animals to the will of man-man, on the one hand, having lost the power of the spirit over nature, and nature, on the other hand, having become estranged from man, or rather having rebelled against him, through the curse pronounced upon the earth-henceforth it was only by force that he could rule over it, by that "fear and dread" which God instilled into the animal creation. Whilst the animals were thus placed in the hand (power) of man, permission was also given to him to slaughter them for food, the eating of the blood being the only thing forbidden.

Articles of agreement among men are usually sealed, that the covenants may be the more solemn, and the performances of the covenants the more sure, to mutual satisfaction. God therefore, being willing more abundantly to show to the heirs of promise the immutability of his councils, has confirmed his covenant by a seal (Heb 6:17), which makes the foundations we build on stand sure, Ti2 2:19. The seal of this covenant of nature was natural enough; it was the rainbow, which, it is likely, was seen in the clouds before, when second causes concurred, but was never a seal of the covenant till now that it was made so by a divine institution. Now, concerning this seal of the covenant, observe, 1. This seal is affixed with repeated assurances of the truth of that promise of which it was designed to be the ratification: I do set my bow in the cloud (Gen 9:23); it shall be seen in the cloud (Gen 9:14), that the eye may affect the heart and confirm the faith; and it shall be the token of the covenant (Gen 9:12, Gen 9:13), and I will remember my covenant, that the waters shall no more become a flood, Gen 9:15. Nay, as if the Eternal Mind needed a memorandum, I will look upon it, that I may remember the everlasting covenant, Gen 9:16. Thus here is line upon line, that we might have sure and strong consolation who have laid hold of this hope. 2. The rainbow appears when the clouds are most disposed to wet, and returns after the rain; when we have most reason to fear the rain prevailing, then God shows this seal of the promise that it shall not prevail. Thus God obviates our fears with such encouragements as are both suitable and seasonable. 3. The thicker the cloud the brighter the bow in the cloud. Thus, as threatening afflictions abound, encouraging consolations much more abound, Co…

9:12 In the Bible, covenants are frequently confirmed by some sort of sign (e.g., 17:11; Exod 31:13, 17; Luke 22:20).