Genesis 38:1-8
Judah and Tamar
38:1 At that time Judah left his brothers and stayed with an Adullamite man named Hirah.
38:2 There Judah saw the daughter of a Canaanite man named Shua. Judah acquired her as a wife and had marital relations with her.
38:3 She became pregnant and had a son. Judah named him Er.
38:4 She became pregnant again and had another son, whom she named Onan.
38:5 Then she had yet another son, whom she named Shelah. She gave birth to him in Kezib.
38:6 Judah acquired a wife for Er his firstborn; her name was Tamar.
38:7 But Er, Judah’s firstborn, was evil in the Lord’s sight, so the Lord killed him.
38:8 Then Judah said to Onan, “Have sexual relations 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.”