Two incidents of tithing came before the law. Neither one is valid to use as justification that Christians ought to be tithing now. If we are taught to tithe in the New Covenant then there would be no issue. We are clearly not taught that we should tithe. The things Jesus taught about money and what the rest of the New Covenant continues to teach is what we need to do today.
Freewill offerings is the only way demonstrated in the New Covenant.
Study of Hebrews Hebrews chapter 7 is studied to determine what it really teaches concerning the law and concerning tithing. Frequently Asked Questions I will add the more popular or difficult questions and answers to this on occasion. Each man should give what he has decided in his heart to give, not reluctantly or under compulsion, for God loves a cheerful giver. As indicated in verse 7 above, you simply need to decide for yourself how much you can freely give. Whatever that amount is, give it cheerfully.