Genesis 9:16

“And the bow shall be in the cloud, etc.] Not whenever there is a cloud, but at some certain times, when that and the sun are in a proper position to form one, and when divine wisdom sees right there should be one; then it appears and continues for a time, and as the cloud becomes thinner and thinner, it disappears: and I will look upon it, that I may remember the everlasting covenant between God and every living creature of all flesh that is upon the earth; not that forgetfulness, or remembrance, properly speaking, belong to God, but this is said after the manner of men; who by this token may be assured, whenever they see the bow in the cloud, that God is not unmindful of the covenant he has…”

“- XXIX. The Covenant with Noah 13. קשׁת qeshet, “bow; related: be bent.” 14. ענן ‛ānan, “cover, cast over; noun: cloud.” The covenant made with Noah Genesis 6:18 is now formally confirmed. The purpose conceived in the heart Genesis 8:21 now receives significant expression. Not only a new blessing is bestowed, but also a new covenant is formed with Noah. For he that has offered an acceptable sacrifice is not only at peace with God, but renewed in mind after the image of God. He is therefore a fit subject for entering into a covenant. Genesis 9:8-11 Unto Noah and to his sons. - God addresses the sons of Noah as the progenitors of the future race. “I establish.” He not merely makes כרת kārat,…”