Which says nothing specific about homosexuality, and applies equally between homosexuality, andheterosexuality.

"Do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived. Neither fornicators, nor idolaters, nor adulterers, nor homosexuals, nor sodomites, nor thieves, nor covetous, nor drunkards, nor revilers, nor extortioners will inherit the kingdom of God."
-1 Corinthians 6:9-10 (NKJV)

"Knowing this: that the law is not made for a righteous person, but for the lawless and insubordinate, for the ungodly and for sinners, for the unholy and profane, for murderers of fathers and murderers of mothers, for manslayers, for fornicators, for sodomites, for kidnappers, for liars, for perjurers, and if there is any other thing that is contrary to sound doctrine,"
-1 Timothy 1:9-10 (NKJV)
These three references indicate that homosexual passions and acts are unnatural, shameful, contrary to sound doctrine and deny entrance to the Kingdom of God. This being so they cannot be the basis of a Christian marriage sanctioned by God's Church. The Church exists to save people, not to bless the means of their damnation. No marriage can be sanctioned by the Church if the very basis of the marriage involves acts that put the couple outside of eternal salvation. No matter what our society may legislate, the law of God is clear - that a marriage is not a godly marriage if it is a same sex union.