let your service to God in giving be generous not grudgingly and the God of all grace supplies all your needs according to his riches in glory amen.
2Cor.9.5 - So I thought it necessary to urge the brothers to visit you in advance and finish the arrangements for the generous gift you had promised. Then it will be ready as a generous gift, not as one grudgingly given.

2Cor.9.6 - Remember this: Whoever sows sparingly will also reap sparingly, and whoever sows generously will also reap generously.