וַיְהִ֣י ׀ פַּ֣חַד יְהוָ֗ה עַ֚ל כָּל־מַמְלְכ֣וֹת הָֽאֲרָצ֔וֹת אֲשֶׁ֖ר סְבִיב֣וֹת יְהוּדָ֑ה וְלֹ֥א נִלְחֲמ֖וּ עִם־יְהוֹשָׁפָֽט׃
And a terror from the LORD fell upon all the kingdoms of the lands that were round about Judah, so that they made no war against Jehoshaphat.
Read midrashic interpretation of II Chronicles 17:10: and classical rabbinic exegesis.