'Mayest' in the Bible

Jehovah do so and much more to Jonathan. Should it please my father to do thee evil, then I will apprise thee of it, and send thee away, that thou mayest go in peace; and Jehovah be with thee, as he has been with my father.

And David's men said to him, Behold the day of which Jehovah said to thee, Behold, I will give thine enemy into thy hand, that thou mayest do to him as it shall seem good to thee. And David arose, and cut off the skirt of Saul's robe secretly.

And Samuel said to Saul, Why hast thou disquieted me, to bring me up? And Saul said, I am sore distressed; for the Philistines make war against me, and God is departed from me, and answers me no more, neither by prophets nor by dreams; therefore I have called thee, that thou mayest make known to me what I shall do.

And now, I pray thee, hearken thou also to the voice of thy bondmaid, and let me set a morsel of bread before thee; and eat, that thou mayest have strength when thou goest on thy way.