Shared ground
These verses are a narrator’s verdict on Ahab, not a neutral report. They summarize his reign as uniquely extreme in “evil in Yahweh’s sight” and define that evil mainly as idolatry. The text also presents Jezebel as a real influence who pushed Ahab further, while still treating Ahab as the responsible actor.
The comparison to the Amorites frames Ahab’s choices as a reversal of Israel’s story: he is acting like the peoples Yahweh previously removed from the land. The point is not only that Ahab did wrong, but that he aligned himself with a pattern Israel was meant to leave behind.
Where interpretation differs
What “sold himself” means. Some read it as total personal surrender—Ahab freely and fully committed himself to evil. Others hear a more transactional nuance—Ahab “gave himself over” because it served his aims (power, stability, alliance politics), without denying that the narrator still condemns him.
How blame is shared between Ahab and Jezebel. Some emphasize Jezebel as the chief driver (“stirred him up”), making Ahab more weak than initiating. Others stress that the main verdict is on Ahab (“none like Ahab… he sold himself… he did very abominably”), with Jezebel’s role explaining intensification, not removing his agency.
Who “the Amorites” are in this comparison. Some take “Amorites” as a fairly specific historical referent. Others take it as a broad label for earlier Canaanite peoples, used as a moral benchmark rather than a precise ethnic-history statement.
Why the disagreement exists
The passage uses compressed, evaluative language. Phrases like “sold himself” and “stirred him up” are vivid but not technical, so readers must infer degree (total commitment vs. expedience) and causation (influence vs. control). Likewise, “Amorites” can function as either a specific people group or a representative category in Israel’s memory.
What this passage clearly contributes
The text explicitly claims that Ahab is portrayed as unmatched in doing evil, that his evil is judged from Yahweh’s perspective (yahweh), that Jezebel intensified his path, and that the core offense was idol-following. It also explicitly links that idol-following to the practices attributed to the Amorites, whom Yahweh previously “cast out” before Israel, implying Ahab’s alignment with a rejected pattern of life and worship (without detailing every historical or psychological mechanism).