2 Corinthians 8:2-5

They have been tested by great troubles, and they are very poor. But they gave much because of their great joy. I can tell you that they gave as much as they were able and even more than they could afford. No one told them to do it. But they begged and pleaded with us to let them share in this service for God’s people. And they gave in a way we did not expect: They first gave themselves to the Lord and to us. This is what God wants.