What could be less sentient and more naive than trying to say that Peter was ministering to the circumcision when he wrote to the gentile northern Israelites in Asia minor?
He opens his epistle declaring that he was writing to the “strangers.” Checking Strong’s you will find that those strangers were the lost sheep of the dispersion, the very same people to whom Paul wrote most of his letters.
.
You've got your contexts mixed up, looks like. That will influence how the written material is to be interpreted and applied, as to the literal and/or figurative-literal sense. Nuances are important, here. At least, the well-known comentators suggest that.