Shared ground
The passage presents Israel’s kingship transition as a slow, messy power struggle rather than a clean handoff. Explicitly, it reports a prolonged conflict between “the house of Saul” and “the house of David,” with a clear trend: David’s side steadily strengthens while Saul’s steadily weakens (v.1). In the middle of that headline, the narrator pauses to list six sons born to David in Hebron (vv.2–5), then returns to the rival camp where Abner’s influence grows (v.6) and an accusation involving Saul’s concubine Rizpah triggers open tension (v.7).
Where interpretation differs
Two questions can be read more than one way.
First, Abner “made himself strong” within Saul’s house (v.6). Some read this as mainly practical—Abner becomes the effective leader holding a failing regime together. Others hear ambition—Abner consolidates power for himself as Saul’s house declines.
Second, Ish-bosheth’s charge about Saul’s concubine (v.7) may be read as mainly moral/sexual wrongdoing, or as a political act with sexual dimensions. In the ancient royal context, taking a dead king’s concubine could signal a claim to the throne, so the accusation can function like a challenge to Ish-bosheth’s legitimacy and Abner’s loyalty.
Why the disagreement exists
The narrator reports key facts without giving motives. Phrases like “long war” and “made himself strong” summarize a situation but leave room about how much fighting occurred and why Abner rose. Likewise, the concubine accusation carries obvious personal offensiveness and also obvious political symbolism; the text does not explicitly weigh which is primary.
What this passage clearly contributes
It shows a shifting balance of power: David’s house is rising, Saul’s is fading (v.1). It also links that rise to concrete social realities—David’s growing household and future succession line in Hebron (vv.2–5). Finally, it sets up the next turn in the story by highlighting instability inside Saul’s camp: Abner’s growing dominance and a confrontation that implies contested authority (vv.6–7). This fits the larger book’s interest in how leadership outcomes emerge through intertwined family, military, and political pressures rather than through idealized narratives (compare 2 Samuel 2:8–11).