2 Corinthians 9:5-6

That is why I thought it necessary to urge these brothers to go to you [before I come] and make arrangements in advance for this generous, previously promised gift of yours, so that it would be ready, not as something extorted [or wrung out of you], but as a [voluntary and] generous gift. Now [remember] this: he who sows sparingly will also reap sparingly, and he who sows generously [that blessings may come to others] will also reap generously [and be blessed].