'Pray' in the Bible

For thou, O my God, hast revealed to thy servant that thou wilt build him a house: therefore hath thy servant found in his heart to pray before thee.

And David said unto Gad, I am in a great strait: let me fall, I pray, into the hand of Jehovah; for very great are his mercies: and let me not fall into the hand of man.

And David said unto God, Is it not I that commanded the people to be numbered? even I it is that have sinned and done very wickedly; but these sheep, what have they done? let thy hand, I pray thee, O Jehovah my God, be against me, and against my father's house; but not against thy people, that they should be plagued.