2 For if I make you sorrowful, then who is he who makes me glad if not the one which is made sorrowful by me?
2 Corinthians 2:2 Cross References - CAB
Romans 12:15
15 Rejoice with those that rejoice, and weep with those that weep.
1 Corinthians 12:26
26 And if one part suffers, all the parts suffer together; or if one part is honored, all the parts rejoice together.
2 Corinthians 1:14
14 just as also you have understood us in part, that we are your boasting, as indeed you also are ours, in the day of the Lord Jesus.
2 Corinthians 7:8
8 Because even if I made you sorry in the letter, I do not regret it, even if I did regret it. For I perceive that the same letter made you sorry, though only for a season.
2 Corinthians 11:29
29 Who is weak, and I am not weak? Who is caused to stumble, and I do not burn with indignation?