'Need' in the Bible

Let us therefore come boldly unto the throne of grace, that we may obtain mercy, and find grace to help in time of need.

For when for the time ye ought to be teachers, ye have need that one teach you again which be the first principles of the oracles of God; and are become such as have need of milk, and not of strong meat.

If therefore perfection were by the Levitical priesthood, (for under it the people received the law,) what further need was there that another priest should rise after the order of Melchisedec, and not be called after the order of Aaron?

For ye have need of patience, that, after ye have done the will of God, ye might receive the promise.