Job 4:4 Commentary: Rashi

כּ֭וֹשֵׁל יְקִימ֣וּן מִלֶּ֑יךָ וּבִרְכַּ֖יִם כֹּרְע֣וֹת תְּאַמֵּֽץ׃

Thy words have upholden him that was falling, And thou hast strengthened the feeble knees.