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.

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.

And all the men of Shechem gathered together,.... Upon the return of Abimelech, after he with his banditti had committed the execrable murder of his brethren:

and all the house of Millo; which was either the men of a place near to Shechem, or of his brother's family, or of some grand leading family in Shechem; or it may mean the town hall, where the principal inhabitants met in full house, as Millo signifies, on this occasion:

and went and made Abimelech king; which was a most bold and daring action; being done without asking counsel of God, without which no king was to be set over Israel, and by a single city, without the knowledge, advice, and consent of the body of the people of Israel: by the plain of the pillar that was in Shechem; the place where they met together, and did this business in voting Abimelech to be king, was near a place where a pillar was set in Shechem; or by the oak of the pillar in Shechem, and so may mean the stone under an oak, which Joshua placed there as a testimony between God and the people, Joshua 24:25 and here, in the same place where Joshua convened the people of Israel, and made his last speech to them, was this business done.

"Then all the citizens of Shechem assembled together, and all the house of Millo, and made Abimelech king at the memorial terebinth at Shechem." Millo is unquestionably the name of the castle or citadel of the town of Shechem, which is called the tower of Shechem in Judges 9:46-49. The word Millo (Chaldee מלּיתא) signifies primarily a rampart, inasmuch as it consisted of two walls, with the space between them filled with rubbish. There was also a Millo at Jerusalem (2 Samuel 5:9; 1 Kings 9:15). "All the house of Millo" are all the inhabitants of the castle, the same persons who are described in Judges 9:46 as "all the men (baale) of the tower." The meaning of מצּב אלון is doubtful. מצּב, the thing set up, is a military post in Isaiah 29:3; but it may also mean a monument of memorial, and here it probably denotes the large stone set up as a memorial at Shechem under the oak or terebinth (see Genesis 35:4). The inhabitants of Shechem, the worshippers of Baal-berith, carried out the election of Abimelech as king in the very same place in which Joshua had held the last national assembly, and had renewed the covenant of Israel with Jehovah the true covenant God (Joshua 24:1, Joshua 24:25-26). It was there in all probability that the temple of Baal-berith was to be found, namely, according to Judges 9:46, near the tower of Shechem or the citadel of Millo.

And all the men of Shechem gathered together, and all the house of {d} Millo, and went, and made Abimelech king, by the plain of the pillar that was in Shechem.

(d) Which was as the town house, or common hall, which he calls the tower of Shechem in Jud 9:49.

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, Josh 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.

plain: or, oak

6. all the men of Shechem ., and all the house of Millo-that is, a mound or rampart, so that the meaning is, all the men in the house or temple; namely, the priests of Baal.

made Abimelech king, by the plain of the pillar-rather, "by the oak near a raised mound"-so that the ceremony of coronation might be conspicuous to a crowd.

9:1-6 The men of Shechem chose Abimelech king. God was not consulted whether they should have any king, much less who it should be. If parents could see what their children would do, and what they are to suffer, their joy in them often would be turned into sorrow: we may be thankful that we cannot know what shall happen. Above all, we should fear and watch against sin; for our evil conduct may produce fatal effects upon our families, after we are in our graves.