The main theme of this letter is persistence in faith in the face of opposition. It was written to give the young church courage even though Paul himself was faced with possible death. It is short and sweet, but the message is great.
As we do this study, it is my prayer that you read the passages and feel what they tell you before reading my commentary. Put the two together and see what the Holy Spirit is telling you to do. The season of Lent is a time for preparation. Paul's message is one of preparation as well.
Reach out to friends and family during this time. Mostly, reach inside and see what God may have in store for you. Be excited!