What is the tithe? It is the gateway for the believer into the covenant of blessings.
The tithe is that tenth of our income that we give to God, which enables him to move on our behalf in the area of blessings. The Bible records numerous accounts of man tithing to God. God is the creator of everything that exists. He owns everything and we are simply stewards of what we have been entrusted with. The tithe principle is this, he gives unto us, we give back to him one-tenth of all that he has blessed us with.

Abraham tithed unto Melchizedek, Isaac tithed, his son Jacob also tithed and many others even before the law was given.
Abraham tithed before the law, and God blessed him supernaturally. We are under grace that we might establish the law, not turn from it. Jesus said that he did not come to do away with the law, but to fulfil it. Because he fulfilled it, we are to establish it. His words are forever settled in heaven, therefore we establish his words upon the earth.