Deuteronomy 1:17

1:17 They must not discriminate in judgment, but hear the lowly and the great alike. Nor should they be intimidated by human beings, for judgment belongs to God. If the matter being adjudicated is too difficult for them, they should bring it before me for a hearing.

Deuteronomy 17:8-11

Appeal to a Higher Court

17:8 If a matter is too difficult for you to judge – bloodshed, legal claim, or assault – matters of controversy in your villages – you must leave there and go up to the place the Lord your God chooses. 17:9 You will go to the Levitical priests and the judge in office in those days and seek a solution; they will render a verdict. 17:10 You must then do as they have determined at that place the Lord chooses. Be careful to do just as you are taught. 17:11 You must do what you are instructed, and the verdict they pronounce to you, without fail. Do not deviate right or left from what they tell you.

Deuteronomy 19:15-19

19:15 A single witness may not testify against another person for any trespass or sin that he commits. A matter may be legally established only on the testimony of two or three witnesses. 19:16 If a false witness testifies against another person and accuses him of a crime, 19:17 then both parties to the controversy must stand before the Lord, that is, before the priests and judges who will be in office in those days. 19:18 The judges will thoroughly investigate the matter, and if the witness should prove to be false and to have given false testimony against the accused, 19:19 you must do to him what he had intended to do to the accused. In this way you will purge evil from among you.

Proverbs 18:13

18:13 The one who gives an answer before he listens –

that is his folly and his shame.