For once you were full of darkness, but now you have light from the Lord. So live as people of light! For this light within you produces only what is good and right and true. Carefully determine what pleases the Lord. Take no part in the worthless deeds of evil and darkness; instead, expose them. It is shameful even to talk about the things that ungodly people do in secret. But their evil intentions will be exposed when the light shines on them, for the light makes everything visible. This is why it is said, “Awake, O sleeper, rise up from the dead, and Christ will give you light.” So be careful how you live. Don’t live like fools, but like those who are wise.