Charles Ellicott Commentary 2 Corinthians 8:19

"and not only so, but who was also appointed by the churches to travel with us in [the matter of] this grace, which is ministered by us to the glory of the Lord, and [to show] our readiness:" — 2 Corinthians 8:19 (ASV)

Who was also chosen of the churches.—The word, as in Acts 14:23, implies a definite appointment, in this case, obviously, by popular election—on the part of the Macedonian churches. This falls in, it hardly needs to be said, with the facts of the case as indicated by the use of the first person plural in Acts 20:5, and through the rest of the book.

With this grace.—The word is used, as in 2 Corinthians 8:4; 2 Corinthians 8:6–7, as we familiarly use the word “charity,” for the liberality which was the result of the grace.

To the glory of the same Lord.—Better, if we keep the Received text, of the Lord Himself; but the better manuscripts give, of the Lord, only. There is no need to insert the word “declaration of”; in relation to the glory of the Lord and to your readiness gives a perfectly intelligible sense.