John Gills Exposition of the Bible Commentary - Genesis 38:6
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 to bear children: it is much more probable that she was daughter of Levi, Judah's brother, as an Arabic writer F15 Abulpharag.... read more
Matthew Henry's Complete Commentary - Genesis 38:1-11
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. Note, When young people that have been well educated begin to change their company, they will soon change their manners, and lose their good education.... read more