1 Chronicles 2:3

3 The sons of Juda: Her, Onan and Sela. These three were born to him of the Chanaanitess the daughter of Sue. And Her the firstborn of Juda, was wicked in the sight of the Lord, and he slew him.

1 Chronicles 2:3 Meaning and Commentary

1 Chronicles 2:3

The sons of Judah
The genealogy begins with him, though the fourth son of Jacob; because, as Kimchi says, this book treats chiefly of the kings of Judah; but rather not only because Jesse and David sprang from him, but also the King Messiah:

Er, and Onan, and Shelah, which three were born unto him of the
daughter of Shua the Canaanitess;
see ( Genesis 38:2 Genesis 38:12 ) ,

and Er, the firstborn of Judah, was evil in the sight of the Lord;
because he did that which was evil:

and he slew him;
he died by the immediate hand of God, and so his brother Onan, being wicked also, ( Genesis 38:7 Genesis 38:10 ) .

1 Chronicles 2:3 In-Context

1 And these are the sons of Israel: Ruben, Simeon, Levi, Juda, Issachar, and Zabulon,

2 Dan, Joseph, Benjamin, Nephtali, Gad, and Aser.

3 The sons of Juda: Her, Onan and Sela. These three were born to him of the Chanaanitess the daughter of Sue. And Her the firstborn of Juda, was wicked in the sight of the Lord, and he slew him.

4 And Thamar his daughter in law bore him Phares and Zara. So all the sons of Juda were five.

5 And the sons of Phares, were Hesron and Hamul.