Had kept - Rather, “was keeping watch.” The city had been taken: but the war continuing, and there being a danger of the Syrians recovering it, Joram and all Israel (i. e., the whole military force) were guarding the recent conquest, while Hazael threatened it.
Related Commentaries of 2 Kings 9:14
2 Kings 9:14
14 So Jehu the son of Jehoshaphat the son of Nimshi conspired against Joram. (Now Joram had kept Ramothgilead, he and all Israel, because of Hazael king of Syria.