Each man should give what he has decided in his own heart to give, not reluctantly or under compulsion, for God loves a cheerful giver. (2Corinthians 9:7)

Now, he who supplies seed to the sower and bread for food will also supply and increase your store of seed and will enlarge the harvest of your righteousness.  You will be made rich in every way so that you can be generous on every occasion, and through us your generosity will result in thanksgiving to God. (2Corinthians 9:10-11)