'Wherefore' in the Bible

And the disciples of John and those of the Pharisees were fasting, and they come and say to him, 'Wherefore do the disciples of John and those of the Pharisees fast, and thy disciples do not fast?'

Then question him do the Pharisees and the scribes, 'Wherefore do thy disciples not walk according to the tradition of the elders, but with unwashed hands do eat the bread?'

And when he was entered into the house, his disciples asked him privately, Wherefore could not we cast him out?

And they were reasoning with themselves, saying, 'If we may say, From heaven, he will say, Wherefore, then, did ye not believe him?