We are seeing so many beautiful Rainbows just now, and its good to remember the first rainbow appears after the flood. God was speaking to Noah, giving him commands and promises.
The sign of the rainbow was “for all future generations” (Genesis 9). When we see a rainbow now, we can let it be a reminder of our covenant-keeping God and His indescribable beauty.
Ezekiel 1:28: “Like the appearance of a rainbow in the clouds on a rainy day, so was the radiance around him. This was the appearance of the likeness of the glory of the LORD.”
and Rev 4:3 And he who sat there had the appearance of jasper and carnelian, and around the throne was a rainbow that had the appearance of an emerald.