Under Gods Command
1 Corinthians 9:01 Am I not free? Am I not an apostle? Have I not seen Jesus our Lord? Are you not the result of my work in the Lord?
Some Corinthians were questioning Paul’s authority and rights as an apostle, so Paul gave his credentials, he actually had seen and talked with the resurrected Christ, who had called him to be an apostle (see Acts 9:3-18). Such credentials make the advice he gives in this letter more persuasive. In 2 Corinthians 10-13, Paul defends his apostleship in greater detail.
Changed lives were the evidence that God was using Paul.
Lets Bring it Home: Does your faith have an impact on others? You can be a life-changer, helping others grow spiritually, if you dedicated yourself to being used by God and letting him make you effective.
Under Gods command 