IT IS THE ONLY KIND OF HOLY MATRIMONY THAT HAS, DOES, AND WILL EVER EXIST!
Long story short, when God created Adam, He made it clear that He was not supposed to be alone. So He decided to give Adam a suitable helper (in other words, a wife). He took one of Adam's ribs and created Eve and presented her to him, and in doing so, He completed mankind, His greatest masterpiece. When Adam awoke and finally met his intimate best friend, he said this:
“This is now bone of my bones and flesh of my flesh; she shall be called ‘woman,’for she was taken out of man.” (Genesis 2:23)
In other words, Eve was a GENETIC FEMALE!
More importantly, God was the one who brought them together. For a marriage to truly experience "The Sexual Force Unleashed" and "Romantic World Peace", both the husband and the wife must have a relationship with God. Ultimately, the reason why "...a man leaves his father and mother and is united to his wife, and they become one flesh" (Gen 2:24, NIV) is because it was GOD'S IDEA! When God came to earth in the flesh as Jesus Christ, He affirmed this (see Mark 10:6-9).
Look, as Christians, we are called to treat everyone with love and respect. This holds true even when they act in ways that are morally reprehensible. We must also obey those in authority, for God has chosen to use governments to maintain order in this world (which, as institutions run by sinners, they obviously don't do perfectly, to say the least). At the same time, we must also live by truth and justice. Christ's law supersedes man's law: if the two are ever in conflict, then we must obey God over man. For ultimately, God is the source of love, truth, peace, justice, and joy. He proved that when He sent His Son, Jesus Christ, to be executed so that, if we believe in Him, we will be spared from the Lake of Fire and have eternal life.
For that reason, whenever I discuss marriage on this blog, I will use Christ's definition, not man's. Marriage is, was, and always will be a sacred institution in which ONE MAN and ONE WOMAN are brought together in holy matrimony by God Himself.