It is good to view these books of the Bible as letters written from prison where Paul could have time to listen to the Lord and communicate to us how a Christian should live. I think it was good to talk about salvation being by faith alone but emphasizing that does not mean we should live like the rest of the world. On the contrary, if salvation has truly come and we are new creations, we should see the Lord at work in all areas of our life and our life become more like Christ’s life as we walk with the Lord.
The last lesson on archeology was a bit heavy for someone not really acquainted with that field but it did bring out some important information about all that has been discovered to verify the truth of Scripture. That was the hardest part for me to digest but I know it is important.