Judges 9:6

And all the house of Millo - If Millo be the name of a place, it is nowhere else mentioned in the sacred writings. But it is probably the name of a person of note and influence in the city of Shechem - the men of Shechem and the family of Millo.

Millo must have been a fortified place close to, but separate from, Shechem, and perhaps the same as the tower of Shechem mentioned in Judges 9:46-47. The building or enlarging of the better-known Millo, at Jerusalem was one of Solomon's great works 1 Kings 9:15, 1 Kings 9:24. The population dwelling in Millo though perhaps numerically small, had great weight from possessing the stronghold. Their giving Abimelech the title of king indicates the strong Canaanite influence at Shechem. All the Canaanite chiefs were called kings, but it was a title hitherto unknown in Israel. This title had not been named by those Israelites who offered to make Gideon their hereditary ruler Judges 8:22-23.

The plain of the pillar ... - Rather "the oak of the garrison which is in Shechem." The oak in question was probably called the "garrison oak," from a garrison being stationed near it.

9:6 House of Millo - Some eminent and potent family living in Shechem, or near it. King - Over all Israel, ver. 22 , which was a strange presumption for the inhabitants of one city; but they had many advantages for it; as the eager, and general, and constant inclination of the Israelites to kingly government; Abimelech's being the son of Gideon, to whom, and to his sons, they offered the kingdom.And though the father could, and did refuse it for himself; yet they might imagine, that he could not give away his sons' right, conveyed to them by the Israelites, in their offer; the universal defection of the Israelites from God to Baal, whose great patron and champion Abimelech pretended to be; the power and prevalency of the tribe of Ephraim, in which Shechem was, whose proud and imperious spirit, would make them readily close with a king of their own brethren; and Abimelech's getting the start of all others, having the crown actually put upon his head, and an army already raised to maintain his tyranny.Of the pillar - Or, by the oak of the pillar, by the oak, where Joshua erected a pillar as a witness of the covenant renewed between God and Israel, 24:26 . This place they chose, to signify that they still owned God, and their covenant with him; and did not worship Baal in opposition to God, but in conjunction with him, or in subordination to him.