Every man's work shall be made manifest: for the day shall declare it, because it shall be revealed by fire; and the fire shall test every man's work of what sort it is.
All Commentaries on 1 Corinthians 3:13 Go To 1 Corinthians 3
Augustine of Hippo
AD 430
The fire will try the quality of everyone’s work. If his work remains, he will receive his reward. If his work burns, he will lose his reward, but he himself will be saved. In this fire neither man will be lost forever, though the fire will profit the one and harm the other, being a test for both.