'Needful' in the Bible

It is needful also that he bear a good character with people outside the Church, lest he fall into reproach or a snare of the Devil.

It was needful therefore that the copies of the things in Heaven should be cleansed in this way, but that the heavenly things themselves should be cleansed with more costly sacrifices.

seeing that His divine power has given us all things that are needful for life and godliness, through our knowledge of Him who has appealed to us by His own glorious perfections.