1 Corinthians 3:11-15

For God has already placed Jesus Christ as the one and only foundation, and no other foundation can be laid. Some will use gold or silver or precious stones in building on the foundation; others will use wood or grass or straw. 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.