An insightful and spot-on comment from Rev. Dr. Matthew Harrison, President of the Lutheran Church-Missouri Synod:
"We hold these truths to be self-evident, that all men are created equal." This simple statement of the Declaration of Independence asserts a God, a Creator, and a self-evident truth. In our postmodern context, many people no longer accept any such external constraints...It is no longer "self-evident" that marriage should be between a man and a woman. While this is the most self-evident reality in all of history, it does make sense that the attack on natural law should be most intense over God's crowning creative set, that of creating mankind as male and female. The postmodern individual will not tolerate limits to personal freedom. Therefore, any natural knowledge of God must go. Indeed, God must go! Yet a society that rejects divinely created order (reason!) is in chaos.
From his book, Christ Have Mercy, page 213