2 Corinthians 9:5-11 (NKJV)
5 "Therefore I thought it necessary to exhort the brethren to go to you ahead of time, and prepare your generous gift beforehand, which you had previously promised, that it may be ready as a matter of generosity and not as a grudging obligation."
6 "But this I say: He who sows sparingly will also reap sparingly, and he who sows bountifully will also reap bountifully."
7 "So let each one give as he purposes in his heart, not grudgingly or of necessity; for God loves a cheerful giver."
8 "And God is able to make all grace abound toward you, that you, always having all sufficiency in all things, may have an abundance for every good work."
9 "As it is written: "He has dispersed abroad, He has given to the poor; His righteousness endures forever."
10 "Now may He who supplies seed to the sower, and bread for food, supply and multiply the seed you have sown and increase the fruits of your righteousness,"
11 "while you are enriched in everything for all liberality, which causes thanksgiving through us to God.