2 Corinthians 9:5-6

So I thought it necessary to urge the brethren that they would go on ahead to you and arrange beforehand your previously promised bountiful gift, so that the same would be ready as a bountiful gift and not affected by covetousness. Now this I say, he who sows sparingly will also reap sparingly, and he who sows bountifully will also reap bountifully.