'One's' in the Bible

each one’s work will become obvious, for the day will disclose it, because it will be revealed by fire; the fire will test the quality of each one’s work.

If any one's work--the building which he has erected--stands the test, he will be rewarded.

If any one's work is burnt up, he will suffer the loss of it; yet he will himself be rescued, but only, as it were, by passing through the fire.