Now Joab was over all the host of Israel: and Benaiah the son of Jehoiada was over the Cherethites and over the Pelethites:

Wesley's Notes

20:23 Over all the host - The good success of this, and of the former expedition, under the conduct of Joab, had so fixed his interest in the army, and others of David's fastest friends, that the king could not without danger displace him.

Jamieson-Fausset-Brown Bible Commentary

2Sa 20:23-26. David's Great Officers.

23. Now Joab was over all the host of Israel-David, whatever his private wishes, found that he possessed not the power of removing Joab; so winking at the murder of Amasa, he re-established that officer in his former post of commander-in-chief. The enumeration of David's cabinet is here given to show that the government was re-established in its wonted course.

Matthew Henry's Concise Commentary

20:23-26 Here is the state of David's court, after his restoration. It is well when able men are appointed to discharge public duties; let all seek to perform those duties, as faithful servants to the Son of David.

Matthew Henry's Whole Bible Commentary

Verses 23-26

Here is an account of the state of David's court after his restoration. Joab retained the office of general, being too great to be displaced. Benaiah, as before, was captain of the guards. Here is one new office erected, which we had not (ch. 8:16-18), that of treasurer, or one over the tribute, for it was not till towards the latter end of his time that David began to raise taxes. Adoram was long in this office, but it cost him his life at last, 1 Ki. 12:18.