What does the Bible say about the long war between the house of Saul and the house of David?

In 2 Samuel 3:1, we see the intense conflict between the house of Saul and the house of David, which serves as a picture for the spiritual warfare faced by believers. David, anointed by God, represents true righteousness, while Saul embodies rebellion against God's will. This story highlights that even when the righteous are in the right, they may endure long periods of trial and conflict, revealing the patience and faith required to trust in God's sovereign timing and promises. God chose to prolong this war for His wise and holy purposes, demonstrating that struggles may serve to strengthen faith rather than imply a lack of obedience or favor.