Justifies, in the Greek, means to free. The context is freeing them from ungodliness because he’s talking about the uncircumcised and comparing to Abraham before circumcision.
Notice who God justifies here: the ungodly. Not the improved or the almost good. The one who stops working to earn His favor and trusts Him is counted righteous, just as Abraham was (Romans 4:3).
#SolaFide


