JMNT(i)
13 each one's work will make itself to be visible in clear light (or: will become apparent), for the Day will make [it] evident (show [it] plainly). Because it is being progressively unveiled (continually revealed) within the midst of Fire, and the Fire, Itself, will test, examine and put to the proof (or: prove by testing) what sort of work each one's exists being.
14 If anyone's work which he built upon [it] will remain, he will receive wages (pay; compensation).
15 If anyone's work will be burned down, he will incur a loss (sustain the damage; forfeit [it]), yet he himself will be saved (rescued and delivered; healed and restored to health; returned to his original state and condition), and as in this way – through Fire!