Genesis 38:4-6

BRG Bible

⁴ And she conceived again, and bare a son; and she called his name Onan.

⁵ And she yet again conceived, and bare a son; and called his name Shelah: and he was at Chezib, when she bare him.

⁶ And Judah took a wife for Er his firstborn, whose name was Tamar.