What did the priests and Levites do with the tithes? I assume some was for sacrifice but was it also for their own provisions and/or to dispense to the poor?
If you remember, the Levites were the Priestly tribe. The Family of Aaron was a Levite Family, and within his line was the sub-family of Kohath from whom the future priests of Israel would come – the Kohanim. Currently, if you meet someone with the surname “Cohen” you are speaking with a direct descendant of that family!