Commentaries:
Barnes' Notes
Salute one another - Greet one another in an affectionate mannner; that is, treat each other with kindness and love, and evince all proper marks of affection.
With an holy kiss - This mode of salutation has been practiced at all times; and particularly in eastern nations. It was even practiced by "men;" see the note at Luke 22:47-48. The use of the word "holy" here serves to denote that Paul intended it as an expression of "Christian" affection; and to guard against all improper familiarity and scandal. It was common, according to Justin Martyr ( Apology ), for the early Christians to practice it in their religious assemblies.
The churches of Christ - That is, the churches in the vicinity of the place where the apostle wrote this Epistle; probably the churches particularly in Achaia.
Other Barnes' Notes entries containing Romans 16:16:
Acts 20:1
Acts 20:37
1 Corinthians 16:20
2 Corinthians 13:12
1 Thessalonians 5:26
1 Peter 5:14
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