2 Corinthians 2:2

For if I cause you sorrow, who then makes me glad but the one whom I made sorrowful?

2 Corinthians 7:8

For though I caused you sorrow by my letter, I do not regret it; though I did regret it—for I see that that letter caused you sorrow, though only for a while—

Romans 12:15

Rejoice with those who rejoice, and weep with those who weep.

1 Corinthians 12:26

And if one member suffers, all the members suffer with it; if one member is honored, all the members rejoice with it.

2 Corinthians 1:14

just as you also partially did understand us, that we are your reason to be proud as you also are ours, in the day of our Lord Jesus.

2 Corinthians 11:29

Who is weak without my being weak? Who is led into sin without my intense concern?

Treasury of Scripture Knowledge

Summary

For if I make you sorry, who is he then that maketh me glad, but the same which is made sorry by me?

Bible References

General references

2 Corinthians 1:14
just as you also partially did understand us, that we are your reason to be proud as you also are ours, in the day of our Lord Jesus.
2 Corinthians 11:29
Who is weak without my being weak? Who is led into sin without my intense concern?
Romans 12:15
Rejoice with those who rejoice, and weep with those who weep.
1 Corinthians 12:26
And if one member suffers, all the members suffer with it; if one member is honored, all the members rejoice with it.