John Gills Exposition of the Bible Commentary - Genesis 38:3
And she conceived, and bare a son, and he called his name Er. Which signifies a "watchman": but the reason of the name given by the Targum of Jonathan is,"because he should die without children;'as if it was the same with Ariri, "childless". 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