2 Corinthians 9:6-8

6 Remember this—a farmer who plants only a few seeds will get a small crop. But the one who plants generously will get a generous crop.
7 You must each decide in your heart how much to give. And don’t give reluctantly or in response to pressure. “For God loves a person who gives cheerfully.”
8 And God will generously provide all you need. Then you will always have everything you need and plenty left over to share with others.