The answer about the LGBT rainbow flag will surprise you. But first, let’s walk through some history.
Forever, the rainbow has been a symbol of God’s promise. This dates back to the everlasting covenant God made with Noah and his sons (the Noahic covenant). It was for all mankind. It was that Noah’s family and for all generations to come. God promised that He would never again destroy the earth with flood waters and, as a sign of the covenant, God placed a rainbow in the sky.
Read more: https://reasonsforhopejesus.com/why-does-lgbt-use-gods-rainbow-for-flag/
Is the LGBT "rainbow" flag the same as God’s rainbow? - Reasons for Hope
Does the rainbow have a meaning? What is the biblical significance of the rainbow? - Compelling Truth
God’s Rainbow Covenant by John MacArthur - Grace to You
Taking Back the Rainbow by Ken Ham - Answers in Genesis
Is Pride Worth Celebrating? by Avery Foley - Answers in Genesis
Can the Church Embrace Homosexual Behavior in the Name of Love? by Avery Foley - Answers in Genesis