What compassion for erring man, to place the beautiful, variegated rainbow in the clouds, a token of the covenant of the great God with man! . . . It was His design that as the children of after generations should see the bow in the cloud, . . . their parents could explain to them the destruction of the old world by a flood, because the people gave themselves up to all manner of wickedness, and that the hands of the Most High had bended the bow, and placed it in the clouds, as a token that He would never bring again a flood of waters on the earth. This symbol in the clouds was to confirm the belief of all, and establish their confidence in God, for it was a token of divine mercy and goodness to man. . . .
A rainbow is represented in Heaven round about the throne, also above the head of Christ, as a symbol of God's mercy encompassing the earth. When man by his great wickedness provokes the wrath of God, Christ, man's intercessor, pleads for him, and points to the rainbow in the cloud, as evidence of God's great mercy and compassion for erring man.
Angels rejoice as they gaze upon this precious token of God's love to man. The world's Redeemer looks upon it; for it was through His instrumentality that this bow was made to appear in the heavens, as a token or covenant of promise to man. God Himself looks upon the bow in the clouds, and remembers His everlasting covenant between Himself and man. . . . As we gaze upon the beautiful sight, we may be joyful in God, assured that He Himself is looking upon this token of His covenant, and that as He looks upon it He remembers the children of earth, to whom it was given. Their afflictions, perils, and trials are not hidden from Him. We may rejoice in hope, for the bow of God's covenant is over us. He never will forget the children of His care. God's Amazing Grace 159
All things both in heaven and in earth declare that the great law of life is a law of service. Ed 103
Then I saw another powerful angel coming down from heaven dressed in a cloud with a rainbow over his head. His face was like the sun, and his legs were like pillars of fire. Revelation 10:1 (New Century Version)