Act 11:1  Now the apostles and the brothers who were throughout Judea heard that the Gentiles also had received the word of God.

Act 11:2  So when Peter went up to Jerusalem, the circumcision party criticized him, saying,

Act 11:3  “You went to uncircumcised men and ate with them.”

• Luke is making clear that people - Jewish Christ-followers - thought this Gentile believer thing was a bridge too far. 
• They CRITICIZED Peter for doing what he did. 
• This is not a friendly visit - it was one Peter was being called on to “prove” to them something they would have great difficulty accepting.
• It was a long-held THEOLOGY that God chose Israel. 
  • The idea that the arrival of Messiah might change that hadn’t come up yet.