What does the phrase 'let him be accursed' mean in Galatians?

In Galatians 1:8-9, Paul emphasizes the seriousness of preaching a gospel contrary to the one he delivered. When he says, 'Let him be accursed,' he is pronouncing a divine curse on anyone—regardless of their status, even an angel—who distorts the true gospel. This reflects the integrity of the message of grace and serves as a warning against any modifications that introduce works or legalism as components of salvation. This strong language underscores the necessity for diligent adherence to the true gospel, which proclaims that salvation comes through faith alone in Christ alone.