Joab was David's nephew and long-serving army commander, a formidable warrior whose loyalty to David was repeatedly mixed with ruthless violence and independent action.
Biography
Joab, son of David's sister Zeruiah, commanded David's forces through much of his reign. He captured Jerusalem's stronghold, led numerous campaigns, and remained a highly effective military leader. Yet he killed Abner in revenge for his brother Asahel, murdered the rival commander Amasa, and killed Absalom despite David's explicit order to deal gently with him. Joab also participated in David's scheme to place Uriah in deadly battle, though he later confronted David indirectly through the wise woman of Tekoa to facilitate Absalom's return. Near David's death, Joab supported Adonijah's attempt to gain the throne rather than Solomon. After Solomon became king, Joab fled to the altar but was executed on Solomon's command in accordance with David's final instructions.
Biblical Significance
Joab represents the morally complicated use of power in David's kingdom. His military skill and long service were substantial, but repeated acts of bloodshed outside proper justice ultimately brought judgment upon him.