κενός

And they caught him, and beat him, and sent him away empty.

He hath filled the hungry with good things; and the rich he hath sent empty away.

And at the season he sent a servant to the husbandmen, that they should give him of the fruit of the vineyard: but the husbandmen beat him, and sent him away empty.

And again he sent another servant: and they beat him also, and entreated him shamefully, and sent him away empty.

Who by the mouth of thy servant David hast said, Why did the heathen rage, and the people imagine vain things?

But by the grace of God I am what I am: and his grace which was bestowed upon me was not in vain; but I laboured more abundantly than they all: yet not I, but the grace of God which was with me.

And if Christ be not risen, then is our preaching vain, and your faith is also vain.

Therefore, my beloved brethren, be ye stedfast, unmoveable, always abounding in the work of the Lord, forasmuch as ye know that your labour is not in vain in the Lord.

We then, as workers together with him, beseech you also that ye receive not the grace of God in vain.

And I went up by revelation, and communicated unto them that gospel which I preach among the Gentiles, but privately to them which were of reputation, lest by any means I should run, or had run, in vain.

Let no man deceive you with vain words: for because of these things cometh the wrath of God upon the children of disobedience.

Holding forth the word of life; that I may rejoice in the day of Christ, that I have not run in vain, neither laboured in vain.

Beware lest any man spoil you through philosophy and vain deceit, after the tradition of men, after the rudiments of the world, and not after Christ.

For yourselves, brethren, know our entrance in unto you, that it was not in vain:

For this cause, when I could no longer forbear, I sent to know your faith, lest by some means the tempter have tempted you, and our labour be in vain.

But wilt thou know, O vain man, that faith without works is dead?