King David's reign over Israel is a pivotal period in biblical history, spanning a total of forty years. Initially, David ruled from Hebron for seven years. Hebron served as the capital of Judah, where David was first anointed king. This period was marked by civil strife and the eventual unification of the northern and southern tribes under David's leadership. After this consolidation, David moved his capital to Jerusalem, where he reigned for thirty-three years. Jerusalem became not only the political center but also the spiritual heart of Israel, as David brought the Ark of the Covenant there, signifying God's presence among His people.
David's reign is characterized by his military conquests, administrative reforms, and deep devotion to God, which laid the foundation for the future prosperity of Israel. His leadership style, marked by both strength and humility, set a precedent for future kings. The forty-year reign symbolizes completeness and stability, reflecting God's favor and the fulfillment of His promises to David. This verse encapsulates the essence of David's legacy as a unifying and transformative leader in Israel's history.