1 Corinthians 3:13-15

And the quality of each person's work will be seen when the Day of Christ exposes it. For on that Day fire will reveal everyone's work; the fire will test it and show its real quality. If what was built on the foundation survives the fire, the builder will receive a reward. But if your work is burnt up, then you will lose it; but you yourself will be saved, as if you had escaped through the fire.