"Each of you should give what you have decided in your heart to give, not reluctantly or under compulsion, for God loves a cheerful giver."
2 Corinthians 9:7 (NIV)
"Bring the whole tithe into the storehouse, that there may be food in my house. Test me in this, says the Lord Almighty and see if I will not throw open the floodgates of heaven and pour out so much blessing that there will not be room enough to store it."
Malachi 3:10 (NKJV)