It is authored by Paul the Apostle for the churches in Galatia, written between 49 and 58 AD.

[2] The disagreement between Paul and Peter recorded in this part is a contrast to their amicable meeting in Jerusalem.

[3] The absence of the outcome report indicates that this issue has influenced the tensions in the Galatians churches, which is addressed in this epistle.

[3] This serves as a summary of the confrontation between Paul and Peter, which leads to the discussion of the main issue in 2:15–21.

[3] In this part, Paul details the theological reasons of his dispute with Peter.