All the brothers here send you greetings. Greet one another with a holy kiss.
20. Salute one another with a holy kiss. The practice of kissing was very common among the Jews, as is manifest from the Scriptures. In Greece, though it was not so common and customary, it was by no means unknown; but the probability is, that Paul speaks here of a solemn kiss, with which they saluted each other in the sacred assembly.
The apostle closes his epistle, I. With salutations to the church of Corinth, first from those of Asia, from Priscilla and Aquila (who seem to have been at this time inhabitants of Ephesus, vid. Act 18:26), with the church in their house (Co1 16:19), and from all the brethren (Co1 16:20) at Ephesus, where, it is highly probable at least, he then was.
Commenting on 1 Corinthians 16:19-24
The grace of our Lord Jesus Christ be with you. This is the apostle's salutation in all his epistles, and is a token of the truth and genuineness of them; See Gill on Rom 16:20; and is a wish for a supply of all grace from Christ, and an increase of it in the saints; that they may have the communications of it to them...