To him be the glory and the power forever and ever. Amen.
So Silas, who was the companion of Paul on many of Paul's missionary journeys, is now a companion of Peter. Perhaps Paul is in prison at this time and so Silas has gone with Peter, and he is the one who writes, does the actual writing of this epistle that was dictated to him by Peter. And Silas was known to a lot of these people because he had traveled with Paul. Peter had not known many of these people, but Silas, having been around with Paul, he's "a faithful brother unto you, as I suppose, and I have written briefly,"