28 At the end of every three years, bring all the tithes of that year’s produce and store it in your towns,

Read Deuteronomy 14:28 Using Other Translations

At the end of three years thou shalt bring forth all the tithe of thine increase the same year, and shalt lay it up within thy gates:
"At the end of every three years you shall bring out all the tithe of your produce in the same year and lay it up within your towns.
“At the end of every third year, bring the entire tithe of that year’s harvest and store it in the nearest town.