2 And they will have no heritage among their countrymen: the Lord is their heritage, as he has said to them. 3 And this is to be the priests' right: those who make an offering of a sheep or an ox are to give to the priest the top part of the leg and the two sides of the head and the stomach. 4 And in addition you are to give him the first of your grain and wine and oil, and the first wool cut from your sheep. 5 For he, and his sons after him for ever, have been marked out by the Lord your God from all your tribes, to do the work of priests in the name of the Lord.
Matthew Henry's Commentary on Deuteronomy 18:2-5
Commentary on Deuteronomy 18:1-8
(Read Deuteronomy 18:1-8)
Care is taken that the priests entangle not themselves with the affairs of this life, nor enrich themselves with the wealth of this world; they have better things to mind. Care is likewise taken that they want not the comforts and conveniences of this life. The people must provide for them. He that has the benefit of solemn religious assemblies, ought to give help for the comfortable support of those that minister in such assemblies.