The Bible is the Word of God. However, some people, who are willing to believe the teaching of Jesus, refuse to accept Paul’s writing as being truth from God. Paul was used to that misunderstanding. People who did not like what God said through him, he said would ridicule him and despise his teaching. So, in this letter to Christians in what is now western Turkey, Paul described the source of his apostolic authority – it came directly from Jesus Christ, the Son of God and God the Father.