I submit reasonable scholarship must conclude Christian faith cannot advocate homosexual marriage. The entire Bible, in speaking of the character, identity, and purpose of God, continuously addresses the issue of homosexual behavior. The scriptures say that in addition to creating all things, God created a single institution, which was marriage between a man and woman as the earthy manifestation of the oneness relationship He seeks with all human beings.
Throughout the Bible He is spoken of as masculine, and all humans become feminine in relation to Him; become the Bride of Christ. To restore relationship lost in Eden, God sent Christ to die for all human sins, but people must repent of, reject all their sins. To pursue sexual sin including fornication, adultery, or homosexual behavior is to reject His identity and His character, and therefore repudiate His gift of salvation enabling relationship with Him..
In Him absolute righteousness and absolute love achieves perfect justice. The scriptures provide no prescription for this problem, but pose a moral paradox requiring one to come before Him. His solution compromises neither His righteousness, nor His unconditional love in guiding each person who struggles through a fallen world, and lives with a fallen nature