'Need' in the Bible

And Jesus having heard it says to them, They that are strong have not need of a physician, but those who are ill. I have not come to call righteous men, but sinners.

And he said to them, Have ye never read what David did when he had need and hungered, he and those with him,

And if any one say to you, Why do ye this? say, The Lord has need of it; and straightway he sends it hither.

And the high priest, having rent his clothes, says, What need have we any more of witnesses?