Shared ground
This paragraph evaluates Abijam the way Kings regularly evaluates rulers: it gives accession details, then measures the king’s life by loyalty to Yahweh, using David as the main comparison point. Explicitly, Abijam’s reign is short ("three years"), centered in Jerusalem, and judged morally negative: he continued his father’s sins and lacked whole-hearted loyalty to Yahweh (vv.1–3).
At the same time, the text explicitly says Judah’s royal continuity in Jerusalem did not end in Abijam’s day because Yahweh acted “for David’s sake,” described as giving a “lamp in Jerusalem” by setting up Abijam’s son after him and keeping Jerusalem established (vv.4–5). The writer reinforces this rationale by summarizing David as obedient overall, with one named exception: “the matter” concerning Uriah the Hittite (; v.5).
Where interpretation differs
What “three years” means. Some read it as three full calendar years; others think it reflects ancient regnal counting and could be closer to two-something years in elapsed time. The text itself only states the official length (“three years”).
What “a lamp in Jerusalem” means in practical terms. Many take it as a metaphor for the continuing Davidic line (a living “light” that does not go out). Others think it also includes the city’s ongoing status as the stable royal center—Jerusalem remains secured as the seat of the Davidic dynasty.
Why v.6 mentions Rehoboam in Abijam’s summary. Some see it as a brief flashback reminding readers the conflict predated Abijam and continued through him; others think it may reflect a copying or editing slip. Either way, v.7 restates the continuing war in Abijam’s own days, so the war-theme clearly frames the era.
Why the disagreement exists
The disagreements come from how ancient reigns were counted (official regnal years versus elapsed time), how far to press metaphors (“lamp”) into concrete politics, and how to explain a verse (v.6) that briefly shifts attention to Rehoboam inside a paragraph about Abijam.
What this passage clearly contributes
The passage contributes a key theme of Kings: individual kings are morally responsible (“he walked in all the sins…”), yet Judah’s dynasty and Jerusalem’s status persist because of Yahweh’s commitment connected to David (“for David’s sake”). It also clarifies what “David as the standard” means for the narrator: David is presented as fundamentally loyal, while still remembered as having one serious failure that is not minimized (Uriah’s case). The result is a sober account where political continuity (a son succeeding) is explained theologically, while ongoing conflict with Israel remains the historical backdrop (1 Kings 15:1–15:7).