וַיְהִ֣י ׀ פַּ֣חַד יְהוָ֗ה עַ֚ל כָּל־מַמְלְכ֣וֹת הָֽאֲרָצ֔וֹת אֲשֶׁ֖ר סְבִיב֣וֹת יְהוּדָ֑ה וְלֹ֥א נִלְחֲמ֖וּ עִם־יְהוֹשָׁפָֽט׃
Rashi on II Chronicles
And the fear of the Lord was upon all the kingdoms of the lands in the merit of having studied Torah.