Paul has not been trying to shame the Christians at Corinth, but rather his intention is to teach them as a Father would teach his children. He wants them to have a closer relationship with Christ and to do this, they are going to have to have a change of attitude. He tells them that although they may have legions of angels watching over them, they have only one Spiritual Father and that is himself. Spiritual parents are the people who prayed for us and brought us to repentance through the preaching and/or teaching of the Gospel. They have, as it were, birthed us into the Gospel. Then as our spiritual parents, they feel a great responsibility to teach us how to live a Holy lifestyle. So, Paul wants the Corinthians to imitate his lifestyle of humility and obedience. Paul has sent to them Timothy, who is his Spiritual son, to help them to stay on course. Paul is reminding them that he not only talks the talk but he walks the walk. Again, it is a message, not only to the Corinthians but to us today.
14 As obedient children, do not conform to the evil desires you had when you lived in ignorance. 15 But just as he who called you is holy, so be holy in all you do;16 for it is written: “Be holy, because I am holy​.​”​​​-​– 1 Peter 1:14-16 NIV