2 Corinthians 8:3-5

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.

2 Corinthians 8:12

8:12 For if the eagerness is present, the gift itself is acceptable according to whatever one has, not according to what he does not have.