Reference for Isaiah 38:19

חַ֥י חַ֛י ה֥וּא יוֹדֶ֖ךָ כָּמ֣וֹנִי הַיּ֑וֹם אָ֣ב לְבָנִ֔ים יוֹדִ֖יעַ אֶל־אֲמִתֶּֽךָ׃

The living, the living, he shall praise Thee, As I do this day; The father to the children shall make known Thy truth.