Albert Barnes Commentary 2 Chronicles 28:17

"For again the Edomites had come and smitten Judah, and carried away captives." — 2 Chronicles 28:17 (ASV)

The Edomites took advantage of the setbacks of Ahaz and were perhaps in league with Rezin (see 2 Kings 16:6 note). The pitilessness of Edom, and her readiness to turn against Judah in any severe distress, is noticed and sternly rebuked by the prophets (Amos 1:11; Ezekiel 35:5; Obadiah 1:10–14, etc.).