Because Christians believe that the Bible is the inspired and infallible Word of God, their opposition [to homosexuality] is rooted in a commitment to the absolute authority of the Bible to define the institution of marriage and to judge the moral nature of homosexual acts (2 Tim. 3:16-17). Therefore, their rejection of homosexuality and “homosexual marriage” is based on the objective, propositional revelation of Scripture that teaches that these things are sinful because they are contrary to the will of God. The true Christian does not condemn sodomy and “same-sex marriage” because of fear or hate, but because his faith in God’s revelation requires him to do so.
William Einwechter