Then she gave birth to another son and named him Shelah; it was at Chezib that she gave birth to him.
Here is, 1. Judah's foolish friendship with a Canaanite-man. He went down from his brethren, and withdrew for a time from their society and his father's family, and got to be intimately acquainted with one Hirah, an Adullamite, Gen 38:1. It is computed that he was now not much above fifteen or sixteen years of age, an easy prey to the tempter.
Commenting on Genesis 38:1-11
And Judah took a wife for Er his firstborn,.... Chose one for him, and presented her to him for his liking, whom he approving of married: whose name was Tamar; which signifies a "palm tree": the Targum of Jonathan says, she was the daughter of Shem; but it is altogether improbable that a daughter of his should be living at this time, and young enough...
And he was at Chezib when she bare him - This town is supposed to be the same with Achzib, which fell to the tribe of Judah, Jos 15:44. "The name," says Ainsworth, "has in Hebrew the signification of lying; and to it the prophet alludes, saying the houses of Achzib shall be (Achzab) a lie to the kings of Israel, Mic 1:14."