2 Corinthians 9:5 I thought it necessary therefore to entreat the brothers that they would go before to you, and arrange ahead of time the generous gift that you promised before, that the same might be ready as a matter of generosity, and not of greediness. (See NIV)
2 Corinthians 9:7 Let each man give according as he has determined in his heart; not grudgingly, or under compulsion; for God loves a cheerful giver. (WEB KJV ASV WBS NAS)