because it demonstrates that the Galatians’ well-intentioned desire to achieve righteousness through circumcision and/or “works of law” is absurd and self-defeating; anyone who has heard the gospel story, as Paul understands it, should realize that we are justified not by anything that we do but by Jesus Christ—indeed, if our interpretation is correct, through the πίστις of Jesus Christ, who loved us and gave himself for us (Gal 2:16, 20). That is the whole meaning (the dianoia) of the gospel story.