See 1 Chronicles 2:3; Numbers 26:19-20. Reader! observe here the general feature of last since the fall. See Genesis 6:4; Genesis 6:4.
Related Commentaries of Genesis 38:1
Genesis 38:1-3
1 And it came to pass at that time, that Judah went down from his brethren, and turned in to a certain Adullamite, whose name was Hirah.
2 And Judah saw there a daughter of a certain Canaanite, whose name was Shuah; and he took her, and went in unto her.
3 And she conceived, and bare a son; and he called his name Er.