2 Corinthians 9:5-9

I thought it necessary therefore to entreat the brethren, that they would go before unto you, and make up beforehand your aforepromised bounty, that the same might be ready as a matter of bounty, and not of extortion. But this I say, He that soweth sparingly shall reap also sparingly; and he that soweth bountifully shall reap also bountifully. Let each man do according as he hath purposed in his heart: not grudgingly, or of necessity: for God loveth a cheerful giver. And God is able to make all grace abound unto you; that ye, having always all sufficiency in everything, may abound unto every good work: as it is written, He hath scattered abroad, he hath given to the poor; His righteousness abideth for ever.