No BODY or no THING or no PRACTICE is "before Christ". As a Libertarian minded guy I'm not even defending marriage from a political or legal standpoint, but I am calling you out on your horrific ignorance of Christianity. If you don't believe in Christianity, then move along, but I am gonna correct you about it. Christianity declares that God has no beginning nor end, he has always existed in perfect union as God the Father, God the Son (Christ), and God the Holy Spirit. His precepts therefore are boundary-less. God does create the union of marriage in scripture, and based on his declaration of Himself, the entirety of his revealed word has always existed in limitless eternity past. All of it existed "before the foundations of the earth". God is outside of time as you understand it. He doesn't "know the future", He is already in the future, simultaneously in the present and past as well. Omnipresence is the word.
Now, based on THAT clear and inarguable tenet of Christianity, shut up. Unless, that is, you do not believe in Christianity. In that case, I do not find ill will with you, I'm just telling what someone who does believe in it must believe.
