2 Corinthians 2:5

2:5 But if anyone has caused sadness, he has not saddened me alone, but to some extent (not to exaggerate) he has saddened all of you as well.

2 Corinthians 7:15

7:15 And his affection for you is much greater when he remembers the obedience of you all, how you welcomed him with fear and trembling.