One so easily denotes it as a Rainbow of hope.
It is not necessarily always true.
The rainbow should also serve as a stark reminder that God reformatted a severely damaged world once before.
Do not view the sign of the rainbow with complacency.
Let the reader beware:
Not ever by water again, but are we forcing His hand to use disease?
“Whenever I bring clouds over the earth and the rainbow appears in the clouds, I will remember my covenant between me and you and all living creatures of every kind. Never again will the waters become a flood to destroy all life.”
Genesis 9:14-15 NIV