Apostolic era
Legalism / Galatianism / Judaizing
Faith in Christ is insufficient; works, rituals, laws, or identity markers are also necessary for justification.
The Central Error
It adds works of law to the ground or instrument of justification.
Historic Response
Confronted directly in Paul’s letter to the Galatians and rejected in historic grace-centered soteriology.
Modern Echoes
Requiring extra rules, feast days, dress codes, dietary laws, or denominational practices as conditions of salvation.