Carl Friedrich Keil and Franz Delitzsch Old Testament Commentary

And the sons of Carmi,.... The Targum adds, this is Zimri; but in Jos 7:1 Carmi is said to be the son of Zabdi, who seems to be the same with Zimri; and some supply the word here, and read (o) the sons of Zimri, Carmi, Achar, who was the grandson of Zimri; his proper name was Achan, Jos 7:1, but called Achar here by way of reproach, as Jarchi and others observe; being, as it follows: the troubler of Israel, as Achar signifies: "who transgressed in the thing accursed"; devoted to the Lord, by taking it away for his own use, see Jos 6:17, hence the valley in which he was put to death was called Achor, Jos 6:26. (o) So Junius & Tremellius, & Piscator.