Ephesians 5:13

13 And when all things are brought out to the light, then their true nature is clearly revealed;

Ephesians 5:13 In-Context

11 Have nothing to do with the worthless things that people do, things that belong to the darkness. Instead, bring them out to the light
12 (It is really too shameful even to talk about the things they do in secret.)
13 And when all things are brought out to the light, then their true nature is clearly revealed;
14 for anything that is clearly revealed becomes light. That is why it is said, "Wake up, sleeper, and rise from death, and Christ will shine on you."
15 So be careful how you live. Don't live like ignorant people, but like wise people.
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.