Salute one another. — As a mark of brotherly feeling among themselves, St. Paul desires those who are assembled at the reading of his Epistle to greet each other in a Christian way. It is to be their own act and not a salutation coming from him.
With an holy kiss. — A common Eastern and Jewish custom specially consecrated in Christianity. (Comp. 1 Corinthians 16:20; 2 Corinthians 13:12; 1 Thessalonians 5:26; 1 Peter 5:14.)
The churches of Christ. — The word “all” should be inserted. As being the Apostle of the Gentiles, and knowing as he did the interest which all would take in the church of the great metropolis, St. Paul feels himself fully justified in speaking for all the churches of his foundation.