John Gills Exposition of the Bible Commentary - Deuteronomy 17:12
The judge of the country court that makes his application to that at Jerusalem for information and direction; if, after all, he is conceited in his own opinion, and rejects theirs, and is obstinate, and will not be guided and directed, but will take his own way, and pursue his own sense of things, and act according to that: and will not hearken to the priest that standeth to minister there before the Lord thy God ; the priests of the tribe of Levi, of whom the court generally consisted, ... read more
Matthew Henry's Complete Commentary - Deuteronomy 17:8-13
Courts of judgment were ordered to be erected in every city (Deut. 16:18), and they were empowered to hear and determine causes according to law, both those which we call pleas of the crown and those between party and party; and we may suppose that ordinarily they ended the matters that were brought before them, and their sentence was definitive; but, 1. It is here taken for granted that sometimes a case might come into their court too difficult for those inferior judges to determine, who... read more