The word "tithe" literally means tenth or 10%. Tithing, or giving ten percent of your income, isn't merely giving something to God. It's giving back what was his to begin with. All that we have, or hope to have, comes from him. The Bible says that tithing is a reminder that God is the supplier of everything. It teaches us to always put God first in our lives. All contributions are tax deductible as allowable by law.