Perhaps his most famous image is the church as a body, the body of Christ. I think he got it on the road to Damascus. It was Jesus Christ who taught Paul that the church in Damascus was his body. For the health of the church corporately. It is deceptive and dangerous.
Unchecked absenteeism communicates the wrong thing about what it means to be a member of the body.
I was concerned that we were lying about God. Church discipline properly practiced is one of the most powerful evangelistic tools God has given us. It aids in highlighting the nature of true conversion, the gospel of Jesus Christ, and the urgency of the issues involved. It helps reveal the church as the powerful witness Jesus meant her to be when he told his disciples in John 13 that the world would know that they were his disciples by the love they had for one another. For the sake of God's glory.