'Work' in the Bible

And I will kill her children (followers) with pestilence [thoroughly annihilating them], and all the churches will know [without any doubt] that I am He who searches the minds and hearts [the innermost thoughts, purposes]; and I will give to each one of you [a reward or punishment] according to your deeds.

Wake up, and strengthen and reaffirm what remains [of your faithful commitment to Me], which is about to die; for I have not found [any of] your deeds completed in the sight of My God or meeting His requirements.

“Behold, I (Jesus) am coming quickly, and My reward is with Me, to give to each one according to the merit of his deeds (earthly works, faithfulness).