"Bring the full tithe into the storehouse, that there may be food in my house. And thereby put me to the test, says the LORD of hosts, if I will not open the windows of heaven for you and pour down for you a blessing until there is no more need." - Malachi 3:10

We’ve even heard of some churches offering a money-back guarantee! ?  That’s how much they believe in God’s promise of blessing when we tithe.