2 Corinthians 8:1-5

3 For to their power, I bear record, yea, and beyond their power they were willing of themselves;
4 Praying us with much intreaty that we would receive the gift, and take upon us the fellowship of the ministering to the saints.
5 And this they did, not as we hoped, but first gave their own selves to the Lord, and unto us by the will of God.