What does the Bible say about the struggle between David and Saul's house?

The narrative of 2 Samuel chapter 3 portrays the protracted conflict between the house of Saul and the house of David. This struggle illustrates a larger spiritual battle wherein David, outlined as God's chosen king, begins to gain strength, while Saul's dynasty wanes under God's sovereign hand. The chapter also serves as a reminder of God’s plans unfolding, as even amidst human sin and strife, His will is ultimately accomplished. The political intrigue surrounding Abner and Ish-bosheth further underscores the downfall of human leadership that does not align with God's chosen path.