2 Corinthians 11:7; 2 Corinthians 12:21

2 Corinthians 11:7

7 Or did I commit a sin in humbling myself so that you might be exalted, because I preached the gospel of God to you without charge?

2 Corinthians 12:21

21 I am afraid that when I come again my God may humiliate me before you, and I may mourn over many of those who have sinned in the past and not repented of the impurity, immorality and sensuality which they have practiced.