What does "tithe" mean?
The tithe is the action that outwardly acknowledges our trust in God concerning our finances. The tithe is the first 10 percent of all of our increase.
“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