'Need' in the Bible

Dependent on Him, the whole body--its various parts closely fitting and firmly adhering to one another-- grows by the aid of every contributory link, with power proportioned to the need of each individual part, so as to build itself up in a spirit of love.

Let no unwholesome words ever pass your lips, but let all your words be good for benefiting others according to the need of the moment, so that they may be a means of blessing to the hearers.