2 Corinthians 8:3-5

3For I can testify that they gave not only what they could afford, but far more. And they did it of their own free will.

4They begged us again and again for the privilege of sharing in the gift for the believers in Jerusalem.

5They even did more than we had hoped, for their first action was to give themselves to the Lord and to us, just as God wanted them to do.