1Corinthians 3:13 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 try every man's work of what sort it is.
1Co 3:14 If any man's work abide which he hath built thereupon, he shall receive a reward.
1Co 3:15 If any man's work shall be burned, he shall suffer loss: but he himself shall be saved; yet so as by fire.
Let`s add the 3 preceding verses to the mix.
10 According to the grace of God which is given unto me, as a wise masterbuilder, I have laid the foundation, and another buildeth thereon. But let every man take heed how he buildeth thereupon.
11 For other foundation can no man lay than that is laid, which is Jesus Christ.
12 Now if any man build upon this foundation gold, silver, precious stones, wood, hay, stubble;
13 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 try every man's work of what sort it is.
14 If any man's work abide which he hath built thereupon, he shall receive a reward.
15 If any man's work shall be burned, he shall suffer loss: but he himself shall be saved; yet so as by fire.
In Paul`s analogy he is talking about the work of building on the foundation of Jesus. This is a principle that is applicable to everything that is done in the name of Jesus and for the kingdom of God.You see in the analogy that all works that are not pure burn up (i.e. wrong doctine, bad motives etc).
This is not a principle that is appplicable to works of the flesh which are your sins. The Bible says that when your sins are forgiven and covered by the blood of Jesus, that God forgets them, blots them out, removes them as far as the east is from the west.
The Holy Spirit is always jealous and able to wash you clean and when you go before Christ, He will not confront you for the sins that He died to save you from.
But the works you have done in His name and for His kingdom. These are the works that must be tried in the fire. That`s why truth is important. Truth is gold and silver that will not burn up in the fire.