<p>6:21 <i>But so you may also know my affairs and how I am doing, Tychicus, the beloved brother and faithful servant in the Lord, shall make known to you all things</i>- Tychicus is mentioned as running errands and messages (Tit. 3:12; Col. 4:7), and from his prison cell Paul sent Tychicus to Ephesus (2 Tim. 4:12). This is another indication that Ephesians was written initially specifically to Ephesus, regardless of what later usage the letter had. Such &quot;messengers of the churches&quot; (2 Cor. 8:23) were vitally important in a period of very limited communications. In essence we can take the lesson that we should likewise sacrifice time and effort in order to keep the body of Christ informed of each other.&nbsp;</p>