Priests and their livelihood; Priests could not be landowners or farmers, but each community had a Levite priest within it to minister to the Name of the LORD Deuteronomy 18:1-7 The whole priestly tribe of Levi shall have no share in the heritage with Israel; they shall live on the oblations of the LORD and the portions due to Him. Levi shall have no heritage among his brothers; the LORD Himself is his heritage, as He has told him. The priests shall have a right to the following things from the people: from those who are offering a sacrifice, whether the victim is from the herd or from the flock, the priest shall receive the shoulder, the jowls and the stomach. You shall also give him the first fruits of your grain and wine and oil, as well as the first fruits of the shearing of your flock; for the LORD, your God, has chosen him and his sons out of all your tribes to be always in attendance to minister in the Name of the LORD. When a Levite goes from one of your communities anywhere in Israel in which he ordinarily resides, to visit, as his heart may desire, the place which the LORD chooses, he may minister there in the Name of the LORD, his God, like all his fellow Levites who are in attendance there before the LORD. He shall then receive the same portions to eat as the rest, along with his monetary offerings and heirlooms.
The LORD expected offerings, the best of the produce to be offered to Him. Deuteronomy 14: 22-23 Each year you shall tithe all the produce that grows in the field you have sown; then in the place which the LORD, your God, chooses as the dwelling place of His Name you shall eat in His presence your tithe of the grain, wine and oil, as well as the firstlings of your herd and flock, that you may learn always to fear the LORD, your God. …you shall take some first fruits of the various products of the soil which you harvest from the land which the LORD, your God, gives you, and putting them in a basket, you shall go to the place which the LORD, your God, chooses for the dwelling place of His Name;
As Catholics, we still tithe and offer the LORD our donations. The priests also strive to live a vow of poverty in keeping with their sacred office. One of the precepts of the Church is to provide financial support for the Church according to one’s ability. These obligations have been in place since the time of Moses for more than three thousand years.