David's men, under the leadership of Joab, returned from a successful military raid, bringing back a significant amount of plunder. This indicates their prowess and success in battle. However, upon their return, they discovered that Abner, a former adversary who had been negotiating peace with David, had already departed from Hebron. David had sent Abner away in peace, signaling his desire for reconciliation and unity among the tribes of Israel.
This moment highlights the tension between the military mindset, represented by Joab and his men, and the diplomatic efforts of David. While David sought to unify the kingdom through peaceful means, Joab's return with plunder symbolizes the ongoing conflict and the challenges of transitioning from war to peace. The verse sets the stage for the ensuing drama and conflict between Joab and Abner, reflecting the complexities of leadership and the delicate balance between pursuing peace and maintaining strength.