Deuteronomy 17:6-16

6 On the evidence of two witnesses or of three witnesses he that is to die shall be put to death; a person shall not be put to death on the evidence of one witness.
7 The hand of the witnesses shall be first against him to put him to death, and afterward the hand of all the people. So you shall purge the evil from the midst of you.
8 "If any case arises requiring decision between one kind of homicide and another, one kind of legal right and another, or one kind of assault and another, any case within your towns which is too difficult for you, then you shall arise and go up to the place which the LORD your God will choose,
9 and coming to the Levitical priests, and to the judge who is in office in those days, you shall consult them, and they shall declare to you the decision.
10 Then you shall do according to what they declare to you from that place which the LORD will choose; and you shall be careful to do according to all that they direct you;
11 according to the instructions which they give you, and according to the decision which they pronounce to you, you shall do; you shall not turn aside from the verdict which they declare to you, either to the right hand or to the left.
12 The man who acts presumptuously, by not obeying the priest who stands to minister there before the LORD your God, or the judge, that man shall die; so you shall purge the evil from Israel.
13 And all the people shall hear, and fear, and not act presumptuously again.
14 "When you come to the land which the LORD your God gives you, and you possess it and dwell in it, and then say, 'I will set a king over me, like all the nations that are round about me';
15 you may indeed set as king over you him whom the LORD your God will choose. One from among your brethren you shall set as king over you; you may not put a foreigner over you, who is not your brother.
16 Only he must not multiply horses for himself, or cause the people to return to Egypt in order to multiply horses, since the LORD has said to you, 'You shall never return that way again.'
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.