'Need' in the Bible

And Jesus, having heard, saith to them, 'They who are strong have no need of a physician, but they who are ill; I came not to call righteous men, but sinners to reformation.'

And he said to them, 'Did ye never read what David did, when he had need and was hungry, he and those with him?

and if any one may say to you, Why do ye this? say ye that the lord hath need of it, and immediately he will send it hither.'

And the chief priest, having rent his garments, saith, 'What need have we yet of witnesses?