2 Corinthians 10:7

10:7 You are looking at outward appearances. If anyone is confident that he belongs to Christ, he should reflect on this again: Just as he himself belongs to Christ, so too do we.

2 Corinthians 11:20

11:20 For you put up with it if someone makes slaves of you, if someone exploits you, if someone takes advantage of you, if someone behaves arrogantly toward you, if someone strikes you in the face.

2 Corinthians 13:5

13:5 Put yourselves to the test to see if you are in the faith; examine yourselves! Or do you not recognize regarding yourselves that Jesus Christ is in you – unless, indeed, you fail the test!