We are not to have fellowship with "unfruitful works of darkness" - Ep 5:11; e.g., fornication, uncleanness, covetousness, Ep 5:3-4

1. Instead, our task is to "expose" them - Ep 5:11b-13

a. Things that we must "expose" are often so disgraceful, it is shameful to speak of them

b. But by "walking in the light" ourselves, we can through example and word expose by contrast these "works of darkness"