Deuteronomy 26:12 "When you have finished laying aside a tenth of all of your produce in the third year, the year of the tithe, you are to give it to the Levite, the foreigner, the fatherless, and the widow, that they may eat and be filled within your gates."
So, the tithing is supposed to be done every third year and given to those without an inheritance.
Sounds like Our Father is a righteous dude.