Dr. Mitchell, begins a new series in Peter. He gives background on the apostle Peter as found in the four Gospels and Acts.
Peter was first of all a fisherman, then a disciple, then an apostle. As an apostle, he wrote two New Testament books.
1st Peter was written to show the true Grace of God to encourage those enduring trials.
2nd Peter was written to show the sufficiency of the Grace of God in the midst of false teachers.
Peter was the first one to proclaim the revelation of God the Father that Jesus is the Christ, the Messiah, the Son of the Living God. Jesus would build His church upon this rock which is God's Divine revelation of who this Jesus is.
Peter writes about this Jesus, the stone rejected by men, but choice and precious in the sight of God.
Here is Dr. Mitchell in 1st Peter 1:1, on the Unchanging Word Bible Broadcast.