Under Gods Command
Proverbs 27:17 – As iron sharpens iron, so one man sharpens another.
Mental sharpness comes from being around good people. And a meeting of minds can help people see their ideas with new clarity, refine them, and shape them into brilliant insights. This requires discussion partners who can challenge one another and stimulate thought-people who focus on the idea without involving their egos in the discussion; people who know how to attack the thought and not the thinker. Two friends who bring their ideas together can help each other become sharper.
Under Gods command 