2 Corinthians 9:6-7 KJV

6 But this I say, He which soweth sparingly shall reap also sparingly; and he which soweth bountifully shall reap also bountifully.
7 Every man according as he purposeth in his heart, so let him give; not grudgingly, or of necessity: for God loveth a cheerful giver.

Proverbs 11:24-25 KJV

24 There is that scattereth, and yet increaseth; and there is that withholdeth more than is meet, but it tendeth to poverty.
25 The liberal soul shall be made fat: and he that watereth shall be watered also himself.