'Need' in the Bible

When Jesus heard it, he said to them, "Those who are healthy have no need for a physician, but those who are sick. I came not to call the righteous, but sinners to repentance."

He said to them, "Did you never read what David did, when he had need, and was hungry -- he, and those who were with him?

The high priest tore his clothes, and said, "What further need have we of witnesses?