They that were of the circumcision; they were such Jews as conversed with them of the church, and argued against them for taking in the Gentiles into any fellowship with them. But it may be that the believing Jews might for a time be very weak, and offended at it, until they were further satisfied by the following relation of St. Peter: till then they disputed, and brought what arguments they could against it.
Related Commentaries of Acts 11:2
Acts 11:2
2 And when Peter was come up to Jerusalem, they that were of the circumcision contended with him,