Commentaries:
Jamieson, Fausset, and Brown
Onesimus—the slave mentioned in the Epistle to Philemon (Philemon 1:10, Philemon 1:16), "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 Colossians 4:8, "that he might (may) know your state," as it is unlikely the same thing should be stated thrice.
Other Jamieson, Fausset, and Brown entries containing Colossians 4:9:
Acts 28:31
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