4And again she gave birth to a son, and he gave him the name Onan.
5Then she had another son, to whom she gave the name Shelah; she was at Chezib when the birth took place.
6And Judah took a wife for his first son Er, and her name was Tamar.
7Now Er, Judah's first son, did evil in the eyes of the Lord, so that he put him to death.
8Then Judah said to Onan, Go in to your brother's wife and do what it is right for a husband's brother to do; make her your wife and get offspring for your brother.
9But 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.
10And what he did was evil in the eyes of the Lord, so that he put him to death, like his brother.