Genesis 38:9 (KJV)
And Onan knew that the seed should not be his and it came to pass when he went in unto his other’s wife that he spilled it on the ground lest that he should give seed to his brother
And Onan knew that the seed should not be his and it came to pass when he went in unto his other’s wife that he spilled it on the ground lest that he should give seed to his brother