Originally posted by SwissGambitYep. He was supposed to be fulfilling the levirite vow by giving his brother’s ex children in his brother’s name. As I say, the banging was not the problem (he was supposed to be doing that)—it was the backing out...
8 And Judah said to Onan, “Go in to your brother’s wife and marry her, and raise up an heir to your brother.” 9 But Onan knew that the heir would not be his; and it came to pass, when [b]he went in to his brother’s wife, that he emitted on the ground, lest he should give an heir to his brother.
The bolded part makes it sound like he did actually bang her.[/b]
What exactry makes people think that has anything to with this other matter, and why they call that "Onanism", is beyond me...