The mighty men were Asahel the brother of Joab, Elhanan the son of Dodo of Bethlehem,
We have here an account of David's worthies, the great men of his time that served him and were preferred by him. The first edition of this catalogue we had, Sa2 23:8, etc. This is much the same, only that those named here from Ch1 11:41 to the end are added. Observe, I. The connexion of this catalogue with that which is said concerning David, Ch1 11:9. 1.
Commenting on 1 Chronicles 11:10-47
A CATALOGUE OF HIS WORTHIES. (1Ch. 11:10-47) These . . . are the chief of the mighty men--(See on Sa2 23:8). They are here described as those who held strongly with him (Margin) to make him king, &c. In these words the sacred historian assigns a reason for introducing the list of their names, immediately after his account of the election of David as king...
Commenting on 1 Chronicles 11:10-47
Also the valiant men of the armies--This was the third degree of military rank, and Asahel was their chief; the names of few of those mentioned are historically known.