# Do not associate with the unfruitful works of darkness

"Do not do useless, sinful things with unbelievers". In this chapter Paul teaches how God's people should live. He uses the image of darkness to represent sin and the image of light to represent righteousness. 

# unfruitful works

actions that do nothing good, useful, or profitable. Paul is comparing evil actions to an unhealthy tree that produces nothing good. 

# expose them

"bring them out into the light" or "show and tell people how wrong these actions are"