Deuteronomy 17:9

And you shall come to the Levitical priests and to the judge who is in office in those days , and you shall consult them, and they shall declare to you the decision .

Go to the Levitical priests and to the judge who is in office at that time. Inquire of them and they will give you the verdict.

And thou shalt come unto the priests the Levites, and unto the judge that shall be in those days, and enquire; and they shall shew thee the sentence of judgment :