Reference for Psalms 33:17

שֶׁ֣קֶר הַ֭סּוּס לִתְשׁוּעָ֑ה וּבְרֹ֥ב חֵ֝יל֗וֹ לֹ֣א יְמַלֵּֽט׃

A horse is a vain thing for safety; Neither doth it afford escape by its great strength.