9
Onan knew that the aoffspring would not be his; so when he went in to his brother's wife, he wasted his seed on the ground in order not to give offspring to his brother.
a
Deuteronomy 25:6
Deuteronomy 25
6
"It shall be that the firstborn whom she bears shall assume the name of his dead brother, so that ahis name will not be blotted out from Israel.