Reference for II Chronicles 18:28

וַיַּ֧עַל מֶֽלֶךְ־יִשְׂרָאֵ֛ל וִֽיהוֹשָׁפָ֥ט מֶֽלֶךְ־יְהוּדָ֖ה אֶל־רָמֹ֥ת גִּלְעָֽד׃

So the king of Israel and Jehoshaphat the kind of Judah went up to Ramoth-gilead.

BDB