2 Corinthians 11:11
Wherefore? because I love you not? God knoweth.
Note 18 at 2Co 11:11: Paul was saying, "Why wouldn't I receive offerings from you? Was it because I didn't love you?" Of course, the answer to that question was no, and Paul explained in the next verse what motivated him to conduct himself that way (see note 19 at 2Co 11:12).
It is interesting to note that Paul raised the question of whether he truly loved them because he wouldn't let them give to him. Paul, and apparently the Corinthians as well, saw giving as a positive thing. It was a privilege and blessing to give into the ministry. Depriving someone of that privilege could be interpreted as a lack of love. Today many people would take it as a sure sign of love if a minister preached to them and didn't receive an offering. The Corinthians were thinking just the opposite.