I have talked about the concept of marriage before. I was trying to think why the term "sanctity" was applied to marriage. It occurs to me that marriage was never sanctified. Assuming that the Bible is an accurate history, and that Adam and Eve were the first people, they got married because there was no one else. In any case, there was no celebration, no priest, no vows. They just decided to be together. I'll skip the part about them only having sons so where did the rest of humanity come from... just like Christians skip that part.