2 Corinthians 1:4

1:4 who comforts us in all our troubles so that we may be able to comfort those experiencing any trouble with the comfort with which we ourselves are comforted by God.

2 Corinthians 12:7

12:7 even because of the extraordinary character of the revelations. Therefore, so that I would not become arrogant, a thorn in the flesh was given to me, a messenger of Satan to trouble me – so that I would not become arrogant.