“The rainbow shall be in the cloud, and I will look on it to remember the everlasting covenant between God and every living creature of all flesh that is on the earth.” – Genesis 9:16
The rainbow was not intended to stand for homosexuality. God does not permit sexual immorality. God will judge you for your disobedience. That is why He flooded the earth.
“Then the LORD saw that the wickedness of man was great in the earth, and that every intent of the thoughts of his heart was only evil continually. And the LORD was sorry that He had made man on the earth, and He was grieved in His heart. So the LORD said, “I will destroy man whom I have created from the face of the earth, both man and beast, creeping thing and birds of the air, for I am sorry that I have made them.” But Noah found grace in the eyes of the LORD.” – Genesis 6:5-8
THUS SAYS THE LORD OF HOSTS
My people are exceedingly wicked and disobedient. They worship idols in the synagogues, yet proclaim to love me. My daughters are disobedient and rebellious. They do not love me. They are exceedingly wicked, and I want nothing to do with them. They are strange, rebellious, lovers of themselves, and lovers of money. I will destroy them. I will mark the harlot with a slash upon her face. For she goes with many lovers and she will be consumed by AIDS. I have called my people, but they do not want to hear me. They will call upon me and I will not answer. You will know that I AM THE LORD THY GOD.