NET
22 If you should pound the fool in the mortar among the grain with the pestle, his foolishness would not depart from him.
Darby
22 If thou shouldest bray a fool in a mortar among wheat with a pestle, yet will not his folly depart from him.
KJV
22 Though thou shouldest bray a fool in a mortar among wheat with a pestle, [yet] will not his foolishness depart from him.