Under the Old Testament, the Tribe of Levi were onely capable of the Priesthood, and other inferiour Offices of the Church. The land was divided amongst the other Tribes (Levi excepted,) which by the subdivision of the Tribe of Joseph, into Ephraim and Manasses, were still twelve. To the Tribe of Levi were assigned certain Cities for their habitation, with the suburbs for their cattell: but for their portion, they were to have the tenth of the fruits of the land of their Brethren. Again, the Priests for their maintenance had the tenth of that tenth, together with part of the oblations, and sacrifices. For God had said to Aaron (Numb. 18. 20.) “Thou shalt have no inheritance in their land, neither shalt thou have any part amongst them, I am thy part, and thine inheritance amongst the Children of Israel.” For God being then King, and having constituted the Tribe of Levi to be his Publique Ministers, he allowed them for their maintenance, the Publique revenue, that is to say, the part that God had reserved to himself; which were Tythes, and Offerings: and that it is which is meant, where God saith, I am thine inheritance. And therefore to the Levites might not unfitly be attributed the name of Clergy from Kleros, which signifieth Lot, or Inheritance; not that they were heirs of the Kingdome of God, more than other; but that Gods inheritance, was their maintenance. Now seeing in this time God himself was their King, and Moses, Aaron, and the succeeding High Priests were his Lieutenants; it is manifest, that the Right of Tythes, and Offerings was constituted by the Civill Power.
After their rejection of God in the demand of a King, they enjoyed still the same revenue; but the Right thereof was derived from that, that the Kings did never take it from them: for the Publique Revenue was at the disposing of him that was the Publique Person; and that (till the Captivity) was the King. And again, after the return from the Captivity, they paid their Tythes as before to the Priest. Hitherto therefore Church Livings were determined by the Civill Soveraign.