Paul spends a third of this epistle not on prophecy but on people. The reason: there is nothing harder or more important than people. All of us need biblical guidance on dealing with the community that surrounds us. In this section Paul gives us our marching orders as saints.
1 Thessalonians concludes with a to do list of 15 commands for the believer and then states that God is faithful and He will do it. Seems like a contradiction but it is actually the key to growing in our faith.