Last week's sermon explored why there was dissention in the church at Corinth, due to people taking for themselves the right of judgement, which belongs to God.
"Application"
Teaching gifts were given to the church to deal with sects like Gnosticism. However, they reject these gifts due to spiritual pride and a distorted view of themselves as "arrived".
In the public arena / theatre is not a position of prestige or power, but of Christ who became a servant and was crucified. We are to present His sufferings to the world.