BIBLE DICTIONARY
Rainbow

An outward token of God's covenant with Noah (Gen. 9: 13; see also Ezek. 1: 28; Rev. 4: 3; Rev. 10: 1). The rainbow no doubt existed before the flood, but with Noah the rainbow took on a new significance as the token of the covenant. JST Gen. 9: 17-25 enlarges the terms of the covenant to include not only that the earth will never again be covered with a flood of water, but also that the Zion of Enoch will return and the Lord will come again to dwell on the earth.