There was something like the appearance of the bow that occurs in a cloud mass on the day of a pouring rain. That is how the appearance was of the brightness round about. It was the appearance of the likeness of the glory of Jehovah.”​—Ezek. 1:25-28.

The appearance of a perfect rainbow indicates calmness, serenity, reminiscent of the enjoyable, quieting calm that follows a storm. It reminds one of the first rainbow that God put into the sky after the global flood to serve as a heavenly sign to Noah and to all of us his descendants, to signify that never again would there be a global deluge.​—Gen. 9:12-16.