GEN307 Marriage must be based not only upon physiological instinct but also upon psychic factors, such as the desire for companionship, affection and love.  In a polygamist age, the wife was spoken of as a man’s helpmate [this verse].  The marriage relation is referred to in Proverbs 2:17 as a Divine covenant. C.H. Toy comments: “The old polygamy or bigamy (The rule up to the Exile) is ignored; monogamy is assumed as the established custom.  The husband is the trusted friend; the marriage-tie has a Divine sanction (cf. Malachi 2:14). The expression covenant of God may refer simply to the general idea of sacredness involved, or it may possibly allude to the religious marriage ceremony.” The primary meaning of the rabbinic term for marriage, Kiddushin, is setting the wife apart for the husband alone, rendering her tabu to any other man. Kiddushin 2b. COHON 164-5