'Necessity' in the Bible

"Have you never read," Jesus replied, "what David did when the necessity arose and he and his men were hungry:

"But they all without exception began to excuse themselves. The first told him, "'I have purchased a piece of land, and must of necessity go and look at it. Pray hold me excused.'

Was there not a necessity for the Christ thus to suffer, and then enter into His glory?"

and urging upon both Jews and Greeks the necessity of turning to God and of believing in Jesus our Lord.

If I go on preaching the Good News, that is nothing for me to boast of; for the necessity is imposed upon me; and alas for me, if I fail to preach it!

For there must of necessity be differences of opinion among you, in order that it may be plainly seen who are the men of sterling worth among you.

For when the priesthood changes, a change of Law also of necessity takes place.

who, unlike other High Priests, is not under the necessity of offering up sacrifices day after day, first for His own sins, and afterwards for those of the people; for this latter thing He did once for all when He offered up Himself.