Charles Ellicott Commentary Romans 16:22

"I Tertius, who write the epistle, salute you in the Lord." — Romans 16:22 (ASV)

Tertius.—The Apostle’s amanuensis. It was the custom of St. Paul to add a few words of parting benedictory encouragement or admonition in his own handwriting, partly as a mark of his own personal interest in his readers, and partly as a precaution against forgery. (See especially Galatians 6:11, and 2 Thessalonians 3:17.)

We have observed in the course of this Commentary how frequently the involved and broken style is to be accounted for by this habit of dictation, and, as it would seem, not very meticulous revision. We have the thoughts and words of the Apostle as they came warm from his own mind.