Hamartiology: atheos - Ephesians 2:12
In Ephesians 2:12 it refers to those who are "without God," that is, godless.
Our use of the word is a lot closer to agnostic and this could break down several different ways.
Book Plug: Politics of Guilt & Pity by R.J. Rushdoony
Current Events: Harvey Weinstein "Shocked! Shocked!"
"Hypocrisy is the tribute that vice pays to virtue."
You cannot have public virtue last for long unless you have private virtue. You cannot have private virtue without gospel. You need gospel for private virtue and you need private virtue for public virtue. At some point your public behavior will match your private behavior.