I came that you may have life and have it abundantly.
Stewardship is prayer.
That is all. There is no need to make it fancy or to tie it up with lots of special language. There is no need to beat people about the head and shoulders about the teaching that the tithe is the minimum standard for giving. A number of us do practice the tithe and have found it an important spiritual tool. It is an important witness, but it is not a law.