Every man according as he purposeth 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 9:8 KJV
But this I say, He which soweth sparingly shall reap also sparingly; and he which soweth bountifully shall reap also bountifully.2 Corinthians 9:6 KJV