Shared ground
The passage presents two outcomes happening at the same time: Judah wins a major battle in Edom/Seir, but Judah also suffers violent losses at home. Explicitly, Amaziah leads the campaign to the Valley of Salt, Judah kills “ten thousand,” captures “another ten thousand,” and those captives are executed by being thrown from a rocky height (vv. 11–12). Explicitly, soldiers Amaziah had dismissed then raid Judahite towns, killing three thousand and taking much plunder (v. 13).
The text also assumes a world where war includes captives, reprisals, and plunder, and where a king’s decisions about troops can quickly rebound in unexpected ways. The narrator’s arrangement highlights the contrast: success abroad is paired with harm within Judah.
Where interpretation differs
Some think “the top of the rock” points to a known place (often connected with Edom’s rocky strongholds), while others take it as a generic description of terrain used for execution.
Some read the numbers (“ten thousand” and “another ten thousand”) as intended to be exact reporting; others hear them as rounded figures meant to communicate a very large, decisive victory.
There is also uncertainty about who the dismissed soldiers were. Some understand them as hired troops connected to the north (with “Samaria” marking their base), while others think of them more generally as troops sent away who then turned into raiders.
Finally, the passage describes the captives being killed, but it does not explicitly say whether Amaziah personally ordered that method or whether Judahite forces carried it out under his campaign leadership.
Why the disagreement exists
The disagreements come from how brief the narration is. The phrases about location (“top of the rock”), origin (“from Samaria”), and agency (who directed the executions) are stated without extra explanation, so readers must decide how much detail the writer assumes the audience already knows.
What this passage clearly contributes
This section contributes a stark picture of how kingship and warfare are portrayed in Chronicles: Amaziah shows resolve and achieves a clear military win, yet the same episode includes brutal treatment of captives and a retaliatory raid that inflicts real loss on Judahite cities. The text’s explicit claims hold these together without trying to soften either side—victory, violence, and blowback are all part of the narrated outcome (cf. the setup in 2 Chronicles 25:6–25:10).