Gen.38.9

And Onan knew that the seed should not be his; and it came to pass, when he went in unto his brother's wife, that he spilled it on the ground, lest that he should give seed to his brother.

Gen.38.9

But Onan knew that the child wouldn't be his, so whenever he slept with his brother's widow he spilled his semen on the ground so he wouldn't produce a child for his brother.

Gen.38.9

But Onan knew that the offspring would not be his; so whenever he lay with his brother's wife, he spilled his semen on the ground to keep from producing offspring for his brother.

Gen.38.9

But Onan knew that the heir would not be his; and it came to pass, when he went in to his brother's wife, that he emitted on the ground, lest he should give an heir to his brother.