Some refrences:
De 14:22 - "You must set aside a tithe of your crops ? one-tenth of all the crops you harvest each year.
De 14:23 - Bring this tithe to the place the LORD your God chooses for his name to be honored, and eat it there in his presence. This applies to your tithes of grain, new wine, olive oil, and the firstborn males of your flocks and herds. The purpose of tithing is to teach you always to fear the LORD your God.
De 14:25 - If so, you may sell the tithe portion of your crops and herds and take the money to the place the LORD your God chooses.
De 14:28 - "At the end of every third year bring the tithe of all your crops and store it in the nearest town.
2Ch 31:5 - The people responded immediately and generously with the first of their crops and grain, new wine, olive oil, honey, and all the produce of their fields. They brought a tithe of all they owned.
Mt 23:23 - "How terrible it will be for you teachers of religious law and you Pharisees. Hypocrites! For you are careful to tithe even the tiniest part of your income, but you ignore the important things of the law ? justice, mercy, and faith. You should tithe, yes, but you should not leave undone the more important things.
Lu 11:42 - "But how terrible it will be for you Pharisees! For you are careful to tithe even the tiniest part of your income, but you completely forget about justice and the love of God. You should tithe, yes, but you should not leave undone the more important things.
Heb 7:5 - Now the priests, who are descendants of Levi, are commanded in the law of Moses to collect a tithe from all the people, even though they are their own relatives.
My church has done a lot for me, both personally and spiritually. I like who they are and what they are doing so I have no problem supporting them. I give what I can. I also give a lot of my time to them. I agree there are corrupt churches out there. There are some also that do a lot of good.