If you aren't tithing already, a great way to start is with the three month tithe challenge! Tithe for three months and if God doesn't hold true to his promise of blessings, we will refund 100% of your tithe. Why would we do this? Because we believe God's word. Because we want something for you, not something from you.
"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."