2 Samuel 20:23

Now Joab [was] over all the host of Israel,.... Established in the post in which he formerly was; either having been never displaced, which though David thought to do, he was not able to effect it, because of his power and influence with the people; or if he had displaced him, which by some things in this chapter seemed to be the case, yet Amasa being dead, and the rebellion crushed by Joab, which still made him more haughty, and increased his popularity, David saw it most advisable to replace him; and because mention is made of him, as established in his office as general over the whole army, an account is given of the rest of David's officers; and the rather, as it was a sort of beginning his reign anew, after quelling the above rebellions:

and Benaiah the son of Jehoiada [was] over the Cherethites, and over the Pelethites; was continued in his post, see 2 Samuel 8:18.