Under Covenant, neither Peter, James, nor John ever wrote to the church-the body of Christ. It is said by some that they preached the same gospel Paul preached, however the bible says to "Prove all things; hold fast that which is good." (1 Thessalonians 5:21). According to the scriptures, and not man's tradition we find that Peter, James, & John wrote doctrine exclusively to the twelve tribes of Israel. At that time, Gentiles could have only been saved by blessing the nation Israel & obeying their “gospel of the kingdom” because salvation was of the Jews, (John 4:22) and is why they preached "the word to none but unto the Jews only" (Acts 11:19). However, Israel as a nation fell after rejecting the Father, Son, and Holy Ghost. God then turned his attention to the Gentiles, (other nations) and then used the apostle Paul to write down and deliver unto us our instructions for salvation and daily living. Israel's gospel included faith plus works for salvation, as opposed to Paul's faith alone gospel of salvation. Please take a close look at the following, and you decide who James, Peter, and John wrote to.
James 1:1 James, a servant of God and of the Lord Jesus Christ, to the twelve tribes which are scattered abroad, greeting.
Peter 1:1 Peter, an apostle of Jesus Christ, to the strangers scattered throughout Pontus, Galatia, Cappadocia, Asia, and Bithynia,
Acts 11:19 Now they which were scattered abroad upon the persecution that arose about Stephen travelled as far as Phenice, and Cyprus, and Antioch, preaching the word to none but unto the Jews only.
3 John 1:7 Because that for his name's sake they went forth, taking nothing of the Gentiles.
Under Grace, the only apostle that wrote to Gentiles is Paul. All thirteen of his letters were addressed to us. The doctrines for the church-the body of Christ are found in Romans through Philemon. In this day and age, Jews that desire to be saved can only be saved by obeying the Gentile gospel given to the apostle Paul (faith alone in Christ alone 1 Corinthians 15:1-4).
Romans 11:13 For I speak to you Gentiles, inasmuch as I am the apostle of the Gentiles, I magnify mine office:
Ephesians 3:1 For this cause I Paul, the prisoner of Jesus Christ for you Gentiles,
1 Timothy 2:7 Whereunto I am ordained a preacher, and an apostle, (I speak the truth in Christ, and lie not;) a teacher of the Gentiles in faith and verity.
2 Timothy 1:11 Whereunto I am appointed a preacher, and an apostle, and a teacher of the Gentiles.
The reason none of the other apostles wrote to us is because they did not preach Paul's "gospel of Christ". They were commissioned to confine their ministry to the circumcised Jews only, and the proof is in Galatians 2.
Galatians 2:9 Paul speaking, "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."
There are three applications we can apply from the verses of our Bible: Historical, spiritual & doctrinal. While we certainly can gain spiritually from all passages of scripture, we can only find our doctrinal instructions in the epistles of the apostle Paul, who the Lord appointed to be our apostle (2 Timothy 4:17).
Why does much of Christendom believe that the letters of Peter contain instructions written to them? This is something commonly taught among denominational religion but is a FALSE teaching nonetheless.
Where did such a teaching come from? Most likely Roman Catholicism.
So did Peter ink instructions to the Jews, or to you a Gentile? Examine carefully and decide for yourself.
1 Peter 2:12 Having your conversation honest among the Gentiles:...
Ask yourself this; If Peter is telling his recipients to have their conversation honest AMONG the Gentiles, then obviously he's not writing TO "the Gentiles" correct?
He is not writing TO the Gentiles but talking ABOUT the Gentiles.
The "your" in verse 12 is that chosen generation, that royal priesthood, that holy nation of peculiar people found just three verses earlier in vs 9.
The apostle Paul spoke very candidly when he said in Galatians 2:8
"(For he that wrought effectually in Peter to the apostleship of the circumcision, the same was mighty in me toward the Gentiles:)"
It is evident that Paul is our apostle and wrote the instructions for today's church-the body of Christ.
The Lord chose him for us before he was even born (Galatians 1:15) and we are to magnify Paul's office (Romans 11:13) but not Paul the man (Job 7:17).
The only one worth magnifying is our Lord and Saviour Jesus Christ who is God in the flesh (1 Timothy 3:16).
"After hearing something taught wrong for so long, the truth then becomes stranger than fiction."