He's not oversimplifying things. And he’s not denying the complexities of real life decisions. But Paul is revealing the root of it all: There is light. And there is darkness.
Ultimately, we must recognize that it comes down to this.
If I’m keeping something secret, why is that?
If I’m hesitant to reveal a habit, what’s behind that?
If I don’t tell the whole story, what’s really going on there?
If I turn from helping a neighbor, why?
Is it goodness? Right relationships? Truth? Or is it something else…something dark?
“Two Ways there are, the way of Life and the way of Death. And there is a great difference between the Two Ways.” – The Didache
“Therefore, do not be foolish, but recognize what the Lord’s will is.” - Paul