Goldingay offers the following reflection based on Genesis 2 and, in particular, his understanding of the nature of “cleaving” which this describes (v. 24).
Jesus inferred from this story that we need to encourage people to keep that commitment rather than encourage them to sit fast and loose to it. Human beings should not tear apart what God put together (e.g., Mk 10:9). This is an exhortation rather than a law, like his other declarations on the imperiling of marriage (see Mt 5:27-32). Merely banning divorce would not fulfill it, and recognizing when marriages have fallen apart and rejoicing for people to start a new marriage would not necessarily resist it. In our own context, people might also want to ask Jesus questions about homosexual practice, polygamy or masturbation, and in response, Jesus might again refer back to Genesis. All these may fit ill with Genesis 1— 2, which implicitly sets sexual expression within the context of a lifelong heterosexual marriage designed to image God in the world. But Jesus might note that, for instance, Western churches tend to be softer on divorce and masturbation than on same-sex partnerships and polygamy, and wonder why that is.
Goldingay, John. Old Testament Theology Series, Volume 1 : Israel’s Gospel. Downers Grove, IL, USA: InterVarsity Press, 2010. ProQuest ebrary. Web. 9 March 2015.
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