'Mayest' in the Bible

And Abner said unto David, I will arise and go, and will gather all Israel unto my lord the king, that they may make a covenant with thee, and that thou mayest reign over all that thy soul desireth. And David sent Abner away; and he went in peace.

And the afflicted people thou wilt save; But thine eyes are upon the haughty, that thou mayest bring them down.