 Paul talks about those who, quote, trust in the flesh. This is all in Galatians. He talks about those who are trying to force Gentiles to be circumcised, how they were trying to force Titus to be circumcised. He talks about those who are trying to convince Gentiles that they need to be under the law, quote, unquote. When he talks about his conflict with Peter in Galatians 2, quote,