Gal 1:7

1:7 some who trouble. Probably Jewish Christians from Jerusalem who insisted that Gentiles must not only believe in Jesus Christ but must also accept circumcision and thereby become Jews (2:3–5, 12; 6:12, 13). Various shades of this idea were widespread among early Jewish Christians (Acts 15:1; 21:20, 21; Phil. 3:2, 3).