Reference for Isaiah 38:9

מִכְתָּ֖ב לְחִזְקִיָּ֣הוּ מֶֽלֶךְ־יְהוּדָ֑ה בַּחֲלֹת֕וֹ וַיְחִ֖י מֵחָלְיֽוֹ׃

The writing of Hezekiah king of Judah, when he had been sick, and was recovered of his sickness.