Godliness

"The mystery of lawlessness" was in the reading recently from 2 Thessalonians 2. 

It seemed an odd phrase.

So how does it compare with "the mystery of godliness" (1 Timothy 3)? 

Wait a cotton-pickin' minute.
Godliness?
Paul says the mystery of GODLINESS is what Jesus did? 

We tend to think godliness is what I think and what I say and what I do and how I feel.  And Paul has this notion that godliness is Jesus' incarnation, suffering, death, resurrection, ascension, and that these events in the Creed are preached.