I've been reading an epistle an evening recently...Here's what I've done so far:
-1 Thessalonians
-2 Thessalonians
-Colossians
-Philippians
-Ephesians

It's funny the things you notice when you read Paul's letters (or any scripture for that matter) to the churches back to back. My 2 most prominent observations:

1. Laziness is ungodly, especially for those that labor in the church. Ministry puts you face to face with many critics who don't want to be part of the solution to whatever they are complaining about.  I need more patience with these people. I need repentance for the times I do the same.

2. The people you invest in and help grow in the faith are your "crown of glory" before God. It's like the ultimate sign of authentic faith, is the works of God in your life contagiously healing/restoring/saving another. God still gets the glory and we get to offer a great gift to our heavenly Father; the investment of our heart for Him in the heart of another.