Who spilled his sperm in the Bible?
Sarah Richards
Published Mar 24, 2026
When Onan had sex with Tamar, he withdrew before he ejaculated and "spilled his seed on the ground" thus committing coitus interuptus, since any child born would not legally be considered his heir. The next statement in the Bible says that Onan did evil and that God slew him.
What happened to Onan in the Bible?
practice of birth control…the Old Testament story of Onan (Genesis 38:8–10), Judah ordered his son Onan to sleep with Onan's recently widowed sister-in-law, but Onan refused on the ground that “the descendants would not be his own, so whenever he had relations with his brother's wife, he let [the seed] be lost on…