Right Division Part 4 - A Comparative Study Between Acts 1-7 & The Pauline Period

Many times, we read into the Old Testament, The Synoptic Gospels and the the Beginning of Acts what we want it to say. A big example is that we make Acts 1-7 say that Peter is talking to the Church when just reading the text and being honest about what the words say proves that He was clearly talking to the Circumcision. If we make the Circumcision in Acts 1-7 one with the Church which is the Body of Christ, then how do we explain Galatians 2:7-9 which says

"but contrariwise, when they saw that the gospel of the uncircumcision was committed unto me, as the gospel of the circumcision was unto Peter; (for he that wrought effectually in Peter to the apostleship of the circumcision, the same was mighty in me toward the Gentiles:) and when James, Cephas, and John, who seemed to be pillars, perceived the grace that was given unto me, they gave to me and Barnabas the right hands of fellowship; that we should go unto the heathen, and they unto the circumcision."