Ahithophel was the king's counselor, and Hushai the Archite was the king's friend. Ahithophel was succeeded by Jehoiada the son of Benaiah, and Abiathar. Joab was commander of the king's army.
1 Chronicles 27:33-34
There is not a lot of deep spiritual insight to be found in a chapter that lists out the names of army divisional commanders and royal officials. It is a mundane list. But the careful listing does grow as it describes the level of closeness to king David. These two verses get us into David's closest inner circle. And they show us just a little about his person, character, and method of leadership.
David enlisted those closest to him as royal advisors. These people were entrusted with the most power and the most access to the king. These positions consisted of advisors, friends, and commanders. They were his inner circle. David did not lead alone, but in the company of advisors and trusted relationships. These men had influence in Israel because they were close to the king.
Every person needs that inner circle of relationships to help them navigate life's road. These might be made up of certain family members. These might include trusted friends whose common sense and camaraderie have combined to help us in times of need. Even the most gregarious of personalities must have some people around who are the closest of trusted friends. And any person who has no "advisors" or "counselors" in his life will find frustration and lonely choices ahead of him. In the abundance of friendships and counselors who advise us, there is safety for all of us. David set an example of the wisdom of living that way.