'Needful' in the Bible

Do not wonder that I said to thee, It is needful that ye should be born anew.

If it is needful to boast, I will boast in the things which concern my infirmity.

Let no corrupt word go out of your mouth, but if there be any good one for needful edification, that it may give grace to those that hear it.

For every high priest is constituted for the offering both of gifts and sacrifices; whence it is needful that this one also should have something which he may offer.

and one from amongst you say to them, Go in peace, be warmed and filled; but give not to them the needful things for the body, what is the profit?