II Corinthians 9:1-3

Now concerning the ministering to the saints, it is superfluous for me to write to you; for I know your willingness, about which I boast of you to the Macedonians, that Achaia was ready a year ago; and your zeal has stirred up the majority. Yet I have sent the brethren, lest our boasting of you should be in vain in this respect, that, as I said, you may be ready