I believe the first letter of Peter, addressed to the churches at Pontus, Galatia, Cappadocia, Asia, and Bithynia, was written in the year 64 AD, making it the twelfth letter in point of chronological order of the New Testament epistles. John Gill, “Commentary On The New Testament Scriptures”: ”That Simon, called Peter, an apostle of Jesus Christ, was the writer of this epistle, is not questioned by any; nor was the genuineness and authenticity of it ever made a doubt of. Eusebius says, that it had been confessed by all, and received without controversy; and that the ancients, without any scruple, had made use of it in their writings. It is called his “general”, or catholic epistle, because it was not written to any particular…

I believe this gospel record was written by John Mark, the nephew of Barnabas, son in the faith to the Apostle Peter and companion of Paul during his first evangelistic campaign. It is one of four inspired narratives recounting the earthly ministry of the Lord Jesus Christ.  John Gill, “Commentary On The New Testament Scriptures”: “This is the title of the book, the subject of which is the Gospel; a joyful account of the ministry, miracles, actions, and sufferings of Christ: the writer of it was not one of the twelve apostles, but an evangelist; the same with John Mark, or John, whose surname was Mark: John was his Hebrew name, and Mark his Gentile name, (Acts 12:12,25), and was Barnabas's sister's son, (Colossians 4:10),…