Homosexuality Is/Isn't Grounds for Divorce
Is
Watchtower 1983 12/15 p.27
"That fornication (which in the Bible sense includes adultery and gross sexual immorality such as homosexuality) can break up a marriage. Scripturally, the innocent partner has the right to divorce the guilty one and remarry without sin in God’s eyes."
Watchtower 1983 3/15 p.30
"What do we understand here by “fornication”? The Greek word in this text is porneia. In discussing the matter, The Watchtower of December 15, 1972, pages 766-768, showed that porneia “comes from a root word meaning ‘to sell.’” Thus it is tied in with prostitution, such as that practiced in many pagan temples in the first century and in ‘houses of ill fame’ today.
True, porneia is sometimes used in a limited sense, as applying to sex relations between unmarried (single) persons. An instance of such a limited usage is 1 Corinthians 6:9, where “fornicators” are mentioned separately and in addition to those who engage in such other sexual vices as adultery and homosexuality. But just before this, at 1 Corinthians 5:9-11, Paul used the same word when counseling Christians not to mix with “fornicators.” Is it reasonable to think that here he referred only to immoral unmarried persons? That could not be so, for chapter 6 sets out a broad range of illicit sexual practices that must be shunned, including adultery and homosexuality. Likewise, Jude 7 and Revelation 21:8, which show that God judges unrepentant “fornicators” as worthy of eternal destruction, could hardly be limited only to unmarried persons that have sex relations. And the Jerusalem governing body’s edict at Acts 15:29, “to keep abstaining . . . from fornication,” must be understood to have the wide field of application.
So, then, “fornication” in the broad sense, and as used at Matthew 5:32 and 19:9, evidently refers to a broad range of unlawful or illicit sex relations outside marriage. Porneia involves the grossly immoral use of the genital organ(s) of at least one human (whether in a natural or a perverted way); also, there must have been another party to the immorality—a human of either sex, or a beast."
Is Not
Watchtower 1972 Jan 1 pp.31,32
"While both homosexuality and bestiality are disgusting perversions, in the case of neither one is the marriage tie broken. It is broken only by acts that make an individual "one flesh" with a person of the opposite sex other than his or her legal marriage mate."
Watchtower 1956 10/1 p.591
"Sodomy (or the unnatural intercourse of one male with another male as with a female), Lesbianism (or the homosexual relations between women), and bestiality (or the unnatural sexual relations by man or woman with an animal) are not Scriptural grounds for divorce. They are filthy, they are unclean, and God’s law to Israel condemned to death those committing such misdeeds, thus drastically putting these out of God’s congregation. But such acts are not adultery with the opposite sex, making the unclean person one flesh with another of the opposite sex."