NET Bible
"But Onan knew that the child would not be considered his. So whenever he slept with his brother’s wife, he wasted his emission on the ground so as not to give his brother a descendant."
— Genesis 38:9, NET Bible
“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.”
“And Onan knew that the seed would 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 he should give seed to his brother. ”
“Onan knew that the seed wouldn't be his; and it happened, when he went in to his brother's wife, that he spilled it on the ground, lest he should give seed to his brother.”
“He knowing that the children should not be his, when he went in to his brother's wife, he spilled his seed upon the ground, lest children should be born in his brother's name.”
“But Onan, seeing that the offspring would not be his, went in to his brother's wife, but let his seed go on to the earth, so that he might not get offspring for his brother.”
“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.”
Judah acquired a wife for Er his firstborn; her name was Tamar.
But Er, Judah’s firstborn, was evil in the LORD’s sight, so the LORD killed him.
Then Judah said to Onan,“Sleep with your brother’s wife and fulfill the duty of a brother-in-law to her so that you may raise up a descendant for your brother.”
But Onan knew that the child would not be considered his. So whenever he slept with his brother’s wife, he wasted his emission on the ground so as not to give his brother a descendant.
What he did was evil in the LORD’s sight, so the LORD killed him too.
Then Judah said to his daughter-in-law Tamar,“Live as a widow in your father’s house until Shelah my son grows up.” For he thought,“I don’t want him to die like his brothers.” So Tamar went and lived in her father’s house.
After some time Judah’s wife, the daughter of Shua, died. After Judah was consoled, he left for Timnah to visit his sheepshearers, along with his friend Hirah the Adullamite.