2 Corinthians 7:6-7

but God who comforts the humble comforted us by the coming of Titus;

2 Corinthians 7:13

On this account we were comforted. And in addition to our comfort, we rejoiced more abundantly for the joy of Titus, because his spirit was refreshed by you all;

2 Thessalonians 2:16-17

and our Lord Jesus Christ himself, and our God and Father, who has loved us and given us eternal consolation and a good hope by grace,

Treasury of Scripture Knowledge

Summary

These two things are come unto thee; who shall be sorry for thee? desolation, and destruction, and the famine, and the sword: by whom shall I comfort thee?

Bible References

By whom

2 Corinthians 7:6
but God who comforts the humble comforted us by the coming of Titus;
2 Thessalonians 2:16
and our Lord Jesus Christ himself, and our God and Father, who has loved us and given us eternal consolation and a good hope by grace,