Bereshis 38:4-6

Orthodox Jewish Bible

⁴ And she conceived again, and bore ben; and she called shmo Onan.

⁵ And she yet again conceived, and bore ben; and called shmo Shelah; at Keziv, when she bore him.

⁶ And Yehudah took a wife for Er his bechor, whose shem was Tamar.