2 Corinthians 2:2

2:2 For if I make you sad, who would be left to make me glad but the one I caused to be sad?

2 Corinthians 2:8-9

2:8 Therefore I urge you to reaffirm your love for him. 2:9 For this reason also I wrote you: to test you to see if you are obedient in everything.