וַיַּ֧עַשׂ כָּזֹ֛את יְחִזְקִיָּ֖הוּ בְּכָל־יְהוּדָ֑ה וַיַּ֨עַשׂ הַטּ֤וֹב וְהַיָּשָׁר֙ וְהָ֣אֱמֶ֔ת לִפְנֵ֖י יְהוָ֥ה אֱלֹהָֽיו׃
And thus did Hezekiah throughout all Judah; and he wrought that which was good and right and faithful before the LORD his God.
Read midrashic interpretation of II Chronicles 31:20: and classical rabbinic exegesis.