Why God Killed Onan
The biblical story of Onan in Genesis 38.6–11 is one that has traditionally been used by Christians, especially Catholics, to show that God detests contraceptive sex and masturbation, or at least male masturbation (since the loss of sperm leads to loss of life, i.e. loss of a substance with the potential to produce offspring). Not just masturbation accompanied by sexual fantasy, visual aids, etc., but any self-stimulation of one's genitalia without reproduction as its end goal. But I'm partial to another interpretation of the biblical text, one that Catholic Answers says has become the orthodoxy in contemporary biblical exegesis. According to this standard interpretation, Onan's sin was failing to perform his duty to impregnate his widowed sister-in-law—nothing more, nothing less. This Israelite practice that Onan failed to follow was known as levirate marriage . Had Onan's brother not died, Onan could have engaged in as much masturbation and contraceptive sex as he pl...