Philemon 1:1 speaks of Paul being in jail for preaching Christ. Paul was happy to be persecuted for the sake of Christ. It's amazing how far people went to stop the gospel, and that it still happens today. It is vey uncomfortable to be confronted with the fact that you are a sinner and in need of the grace of God. This picture illustrates a happy guy being jailed for Christ. The cross is red to remind us of Christ's blood shed for us.