The son of Carmi: Achar, who brought trouble upon Israel by violating the ban on devoted things.
The twelve sons of Jacob descended through all Scripture, yet several of them were much blemished in character. But the covenant was entailed on their seed by free grace alone, not works, else any man might boast. The tribe of Judah, most praised and increased, produced both the vile and the virtuous in one line; Christ Himself, the top branch of that tree, grew from roots that held Achan the troubler and Tamar the woman wronged.
AI summary
Commenting on 1 Chronicles 2:1-17
And Ram begat Amminadab,.... Ram is the same with Aram, Mat 1:3 the genealogy is carried down from him to Jesse in the same order as there, and in Rut 4:19 only here Nahshon the son of Amminadab is called the prince of the children of Judah; which Kimchi and Jarchi say is written for the honour of David, who descended from him; and Salmon...
the sons of Carmi--He was the son of Zimri, or Zabdi, as he is called (Jos 7:1). Achar--or Achan (Jos 7:1). This variety in the form of the name is with great propriety used here, since Achar means "troubler."