Absolutely. It applies to any marriage, even an undeclared gay one. The reason for the drive for marriage equality is because long-separated families who were technically next of kin banished the husband or wife from the hospital room when their spouse was dying. Marriage is when you turn in your natal family for a chosen one. Gays too. That whole passage, by the way, was about marriage and divorce, not homosexuality. Bad proof texting on your part and the asexual clergy's.