This is a very annoying rehashing by the Jehovah's Witnesses of what every other half-wit in this country is saying about gay marriage.
I grew up as a JW and unlike many people who have left the faith, I don't have an axe to grind against the "society" (which is what JWs call The Watchtower). When I came out about four years ago I was set to part ways with the JWs, but the effects still linger with my family. You can blame the link above for the drama.
So, stand-out quote from the article on the "sin" that is homosexuality: "The Bible is clear: God does not approve of or condone homosexual practices. He also disapproves of people who “consent with those practicing them.” (Romans 1:32) And “marriage” cannot give homosexuality a cloak of respectability. God’s direction that “marriage be honorable among all” precludes homosexual unions, which he considers detestable.—Hebrews 13:4."
Hard to argue with the Bible. So I won't. But I will say that the spinning of old texts to build consensus among fanatics and bigots, REAL bigots who believe that other groups are inferior and not entitled to the same rights as others, is a huge part of today's problems. It's a certainly a big part of mine.