2 Corinthians 9:2-3

2For I know your eagerness to help, and I have been boasting to the Macedonians that since last year you in Achaia were prepared to give. And your zeal has stirred most of them to do likewise.

3But I am sending the brothers in order that our boasting about you in this matter should not prove empty, but that you will be prepared, just as I said.