If you are seeking the truth please read the articles below and ask God to show you the truth.
Tithing, the old lie that could send you to hell
Serious truth not known by most
Tithing: Low-Realm, obsolete and defunct
The best book on tithing that I have read
A court scenario that destroys most of the arguments for tithing
Another good article on tithing
How much do you really know about tithing?
Good article by Roger Sapp