I have started going through 1 Corinthians using Jon Courson's application commentary. Just some thoughts on 1:1-9. Both Paul and the church's (ie our) identity is fixed based on our relationship with Christ and not our past. Paul was "a called apostle" and we are "called saints". This can be an important reminder if we are struggling with a sense of shortcoming in our walks. We are who we are because of God's work and grace and not because of our "work".