Commentaries
4:7-9 Ministers are servants to Christ, and fellow-servants to one another. They have one Lord, though they have different stations and powers for service. It is a great comfort under the troubles and difficulties of life, to have fellow Christians caring for us. Circumstances of life make no difference in the spiritual relation among sincere Christians; they partake of the same privileges, and are entitled to the same regards. What amazing changes Divine grace makes! Faithless servants become faithful and beloved brethren, and some who had done wrong, become fellow-workers of good.
9. Onesimus—the slave mentioned in the Epistle to Philemon (Phm 10, 16), "a brother beloved."
a faithful … brother—rather, "the faithful brother," he being known to the Colossians as the slave of Philemon, their fellow townsman and fellow Christian.
one of you—belonging to your city.
They shall make known unto you all things—Greek, "all the things here." This substantial repetition of "all my state shall Tychicus declare unto you," strongly favors the reading of English Version in Col 4:8, "that he might (may) know your state," as it is unlikely the same thing should be stated thrice.