2 Corinthians 8:2-5

8:2 that during a severe ordeal of suffering, their abundant joy and their extreme poverty have overflowed in the wealth of their generosity. 8:3 For I testify, they gave according to their means and beyond their means. They did so voluntarily, 8:4 begging us with great earnestness for the blessing and fellowship of helping the saints. 8:5 And they did this not just as we had hoped, but they gave themselves first to the Lord and to us by the will of God.