Deuteronomy 14:22-23

Tithes

22  a You shall tithe all the yield of your seed that comes from the field year by year. 23 And before the  Lord your God, in the place that he will choose, to make his name dwell there, b you shall eat the tithe of your grain, of your wine, and of your oil, c and the firstborn of your herd and flock, d that you may learn to fear the  Lord your God always.
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