I detest legalism. I certainly don't want to try to pour new wine into old wineskins, imposing superseded First Covenant restrictions on Christians. But at the same time, every New Testament example of giving goes far beyond the tithe. However, none falls short of it.
The Treasure Principle Bible Study: Discovering the Secret of Joyful Giving (ed. Multnomah Pub, 2003) - ISBN: 9781590521878