But I say, he which soweth sparingly shall reap also sparingly; and he which soweth bountifully shall reap also bountifully. Every man according as he purpose in his heart, so let him give; not grudgingly, or of necessity; for god loveth a cheerful giver. And God is able to make all grace abound toward you; that ye, always having all sufficiency in all things, may abound to every good work.
2 Corinthians 9:6-8