Deuteronomy 17-18 New Revised Standard Version Catholic Edition (NRSVCE)

17 You must not sacrifice to the Lord your God an ox or a sheep that has a defect, anything seriously wrong; for that is abhorrent to the Lord your God.

2 If there is found among you, in one of your towns that the Lord your God is giving you, a man or woman who does what is evil in the sight of the Lord your God, and transgresses his covenant 3 by going to serve other gods and worshiping them—whether the sun or the moon or any of the host of heaven, which I have forbidden— 4 and if it is reported to you or you hear of it, and you make a thorough inquiry, and the charge is proved true that such an abhorrent thing has occurred in Israel, 5 then you shall bring out to your gates that man or that woman who has committed this crime and you shall stone the man or woman to death. 6 On the evidence of two or three witnesses the death sentence shall be executed; a person must not be put to death on the evidence of only one witness. 7 The hands of the witnesses shall be the first raised against the person to execute the death penalty, and afterward the hands of all the people. So you shall purge the evil from your midst.

Legal Decisions by Priests and Judges
8 If a judicial decision is too difficult for you to make between one kind of bloodshed and another, one kind of legal right and another, or one kind of assault and another—any such matters of dispute in your towns—then you shall immediately go up to the place that the Lord your God will choose, 9 where you shall consult with the levitical priests and the judge who is in office in those days; they shall announce to you the decision in the case. 10 Carry out exactly the decision that they announce to you from the place that the Lord will choose, diligently observing everything they instruct you. 11 You must carry out fully the law that they interpret for you or the ruling that they announce to you; do not turn aside from the decision that they announce to you, either to the right or to the left. 12 As for anyone who presumes to disobey the priest appointed to minister there to the Lord your God, or the judge, that person shall die. So you shall purge the evil from Israel. 13 All the people will hear and be afraid, and will not act presumptuously again.

Limitations of Royal Authority
14 When you have come into the land that the Lord your God is giving you, and have taken possession of it and settled in it, and you say, “I will set a king over me, like all the nations that are around me,” 15 you may indeed set over you a king whom the Lord your God will choose. One of your own community you may set as king over you; you are not permitted to put a foreigner over you, who is not of your own community. 16 Even so, he must not acquire many horses for himself, or return the people to Egypt in order to acquire more horses, since the Lord has said to you, “You must never return that way again.” 17 And he must not acquire many wives for himself, or else his heart will turn away; also silver and gold he must not acquire in great quantity for himself. 18 When he has taken the throne of his kingdom, he shall have a copy of this law written for him in the presence of the levitical priests. 19 It shall remain with him and he shall read in it all the days of his life, so that he may learn to fear the Lord his God, diligently observing all the words of this law and these statutes, 20 neither exalting himself above other members of the community nor turning aside from the commandment, either to the right or to the left, so that he and his descendants may reign long over his kingdom in Israel.

Privileges of Priests and Levites
18 The levitical priests, the whole tribe of Levi, shall have no allotment or inheritance within Israel. They may eat the sacrifices that are the Lord’s portion[a] 2 but they shall have no inheritance among the other members of the community; the Lord is their inheritance, as he promised them.

3 This shall be the priests’ due from the people, from those offering a sacrifice, whether an ox or a sheep: they shall give to the priest the shoulder, the two jowls, and the stomach. 4 The first fruits of your grain, your wine, and your oil, as well as the first of the fleece of your sheep, you shall give him. 5 For the Lord your God has chosen Levi[b] out of all your tribes, to stand and minister in the name of the Lord, him and his sons for all time.

6 If a Levite leaves any of your towns, from wherever he has been residing in Israel, and comes to the place that the Lord will choose (and he may come whenever he wishes), 7 then he may minister in the name of the Lord his God, like all his fellow-Levites who stand to minister there before the Lord. 8 They shall have equal portions to eat, even though they have income from the sale of family possessions.[c]

Child-Sacrifice, Divination, and Magic Prohibited
9 When you come into the land that the Lord your God is giving you, you must not learn to imitate the abhorrent practices of those nations. 10 No one shall be found among you who makes a son or daughter pass through fire, or who practices divination, or is a soothsayer, or an augur, or a sorcerer, 11 or one who casts spells, or who consults ghosts or spirits, or who seeks oracles from the dead. 12 For whoever does these things is abhorrent to the Lord; it is because of such abhorrent practices that the Lord your God is driving them out before you. 13 You must remain completely loyal to the Lord your God. 14 Although these nations that you are about to dispossess do give heed to soothsayers and diviners, as for you, the Lord your God does not permit you to do so.

A New Prophet Like Moses
15 The Lord your God will raise up for you a prophet[d] like me from among your own people; you shall heed such a prophet.[e] 16 This is what you requested of the Lord your God at Horeb on the day of the assembly when you said: “If I hear the voice of the Lord my God any more, or ever again see this great fire, I will die.” 17 Then the Lord replied to me: “They are right in what they have said. 18 I will raise up for them a prophet[f] like you from among their own people; I will put my words in the mouth of the prophet,[g] who shall speak to them everything that I command. 19 Anyone who does not heed the words that the prophet[h] shall speak in my name, I myself will hold accountable. 20 But any prophet who speaks in the name of other gods, or who presumes to speak in my name a word that I have not commanded the prophet to speak—that prophet shall die.” 21 You may say to yourself, “How can we recognize a word that the Lord has not spoken?” 22 If a prophet speaks in the name of the Lord but the thing does not take place or prove true, it is a word that the Lord has not spoken. The prophet has spoken it presumptuously; do not be frightened by it.