'Mayest' in the Bible

And this regarding Judah; so he said,“Hear, O Lord, the voice of Judah,And bring him to his people.With his hands he contended for them,And may You be a help against his adversaries.”

But let all who take refuge in You be glad,Let them ever sing for joy;And may You shelter them,That those who love Your name may exult in You.

Therefore, let everyone who is godly pray to You in a time when You may be found;Surely in a flood of great waters they will not reach him.

May You increase my greatnessAnd turn to comfort me.

That You may grant him relief from the days of adversity,Until a pit is dug for the wicked.

But there is forgiveness with You,That You may be feared.