1 Corinthians 15:14

And if Christ be not raised, your faith is vain; ye are yet in your sins.

For if we believe that Jesus died and rose again, even so them also which sleep in Jesus will God bring with him.

But in vain they do worship me, teaching for doctrines the commandments of men.

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

Because he hath appointed a day, in the which he will judge the world in righteousness by that man whom he hath ordained; whereof he hath given assurance unto all men, in that he hath raised him from the dead.

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.

Then I said, I have laboured in vain, I have spent my strength for nought, and in vain: yet surely my judgment is with the LORD, and my work with my God.

By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain.

Verily I have cleansed my heart in vain, and washed my hands in innocency.

Also he sent forth a dove from him, to see if the waters were abated from off the face of the ground;

If any man among you seem to be religious, and bridleth not his tongue, but deceiveth his own heart, this man’s religion is vain.