Peter defends Paul’s ministry to gentiles:
Acts 15:7-11
Peter writes 2 epistles to believing Jews:
1 Peter 1:1 Peter, an apostle of Jesus Christ, to the strangers scattered ….
2 Peter 1:1 Simon Peter, a servant and an apostle of Jesus Christ, to them…
Paul mentions Peter to the Galatians:
Galatians 1:18 Then after three years I went up to Jerusalem to see Peter, and abode with him fifteen days.
Galatians 2:7-8 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:)
Galatians 2:11 But when Peter was come to Antioch, I withstood him to the face, because he was to be blamed.
Galatians 2:14 But when I saw that they walked not uprightly according to the truth of the gospel, I said unto Peter before them all, If thou, being a Jew, livest after the manner of Gentiles, and not as do the Jews, why compellest thou the Gentiles to live as do the Jews?