1 Corinthians 3:13; 1 Corinthians 11:19; 1 Corinthians 14:25

13 each man's work will become evident; for the day will show it because it is to be revealed with fire, and the fire itself will test the quality of each man's work.

19 For there must also be factions among you, so that those who are approved may become evident among you.

25 the secrets of his heart are disclosed; and so he will fall on his face and worship God, declaring that God is certainly among you.