I tithe 10 percent to my church every dime I make. I used to tithe but only found out the biblical?

principle of first fruits and ten percent later on. Now I have never had more money in savings (please don't get hung up on the look at me aspect of this question) than I have ever had. You don't go to my church I will never meet you. As a atheist or a christian or whomever or whatever you believe. How do you feel about a covenant established with your income with God?