'Wherefore' in the Bible

and the king of Egypt calleth for the midwives, and saith to them, 'Wherefore have ye done this thing, and keep the lads alive?'

And they come in to Reuel their father, and he saith, 'Wherefore have ye hastened to come in to-day?'

And Moses saith, 'Let me turn aside, I pray thee, and I see this great appearance; wherefore is the bush not burned?'

And the authorities of the sons of Israel, whom the exactors of Pharaoh have placed over them, are beaten, saying, 'Wherefore have ye not completed your portion in making brick as heretofore, both yesterday and to-day?'

and the father-in-law of Moses seeth all that he is doing to the people, and saith, 'What is this thing which thou art doing to the people? wherefore art thou sitting by thyself, and all the people standing by thee from morning till evening?'