2 Corinthians 9:4-5

4For if any of the Macedonians should come with me and find that you are not ready to give, we would be humiliated (not to mention you) by this confidence we had in you.

5Therefore I thought it necessary to urge these brothers to go to you in advance and to arrange ahead of time the generous contribution you had promised, so this may be ready as a generous gift and not as something you feel forced to do.