'Rainbow' in the Bible

I set My rainbow in the clouds, and it shall be a sign of a covenant between Me and the earth.

It shall come about, when I bring clouds over the earth, that the rainbow shall be seen in the clouds,

When the rainbow is in the clouds and I look at it, I will [solemnly] remember the everlasting covenant between God and every living creature of all flesh that is on the earth.”

And God said to Noah, “This [rainbow] is the sign of the covenant (solemn pledge, binding agreement) which I have established between Me and all living things on the earth.”