'May' in the Bible

May grace, mercy, and peace be with us from God the Father, and from Jesus Christ, the Son of the Father, in all true love.

Keep watch over yourselves, so that you do not make our work of no effect, but may get your full reward.

Having much to say to you, it is not my purpose to put it all down with paper and ink: but I am hoping to come to you, and to have talk with you face to face, so that your joy may be full.