17 for my father fought for you, risked his life, and delivered you out of the hand of Midian; 18 but you have risen up against my father's house this day, and killed his seventy sons on one stone, and made Abimelech, the son of his female servant, king over the men of Shechem, because he is your brother-- 19 if then you have acted in truth and sincerity with Jerubbaal and with his house this day, then rejoice in Abimelech, and let him also rejoice in you. 20 But if not, let fire come from Abimelech and devour the men of Shechem and Beth Millo; and let fire come from the men of Shechem and from Beth Millo and devour Abimelech!" 21 And Jotham ran away and fled; and he went to Beer and dwelt there, for fear of Abimelech his brother.

22 After Abimelech had reigned over Israel three years, 23 God sent a spirit of ill will between Abimelech and the men of Shechem; and the men of Shechem dealt treacherously with Abimelech, 24 that the crime done to the seventy sons of Jerubbaal might be settled and their blood be laid on Abimelech their brother, who killed them, and on the men of Shechem, who aided him in the killing of his brothers. 25 And the men of Shechem set men in ambush against him on the tops of the mountains, and they robbed all who passed by them along that way; and it was told Abimelech. 26 Now Gaal the son of Ebed came with his brothers and went over to Shechem; and the men of Shechem put their confidence in him. 27 So they went out into the fields, and gathered grapes from their vineyards and trod them, and made merry. And they went into the house of their god, and ate and drank, and cursed Abimelech. 28 Then Gaal the son of Ebed said, "Who is Abimelech, and who is Shechem, that we should serve him? Is he not the son of Jerubbaal, and is not Zebul his officer? Serve the men of Hamor the father of Shechem; but why should we serve him? 29 If only this people were under my authority! Then I would remove Abimelech." So he said to Abimelech, "Increase your army and come out!" 30 When Zebul, the ruler of the city, heard the words of Gaal the son of Ebed, his anger was aroused. 31 And he sent messengers to Abimelech secretly, saying, "Take note! Gaal the son of Ebed and his brothers have come to Shechem; and here they are, fortifying the city against you. 32 Now therefore, get up by night, you and the people who are with you, and lie in wait in the field. 33 And it shall be, as soon as the sun is up in the morning, that you shall rise early and rush upon the city; and when he and the people who are with him come out against you, you may then do to them as you find opportunity." 34 So Abimelech and all the people who were with him rose by night, and lay in wait against Shechem in four companies. 35 When Gaal the son of Ebed went out and stood in the entrance to the city gate, Abimelech and the people who were with him rose from lying in wait. 36 And when Gaal saw the people, he said to Zebul, "Look, people are coming down from the tops of the mountains!" But Zebul said to him, "You see the shadows of the mountains as if they were men." 37 So Gaal spoke again and said, "See, people are coming down from the center of the land, and another company is coming from the Diviners' Terebinth Tree." 38 Then Zebul said to him, "Where indeed is your mouth now, with which you said, 'Who is Abimelech, that we should serve him?' Are not these the people whom you despised? Go out, if you will, and fight with them now." 39 So Gaal went out, leading the men of Shechem, and fought with Abimelech.

Matthew Henry's Commentary on Judges 9:17-39

Commentary on Judges 9:7-21

(Read Judges 9:7-21)

There was no occasion for the trees to choose a king, they are all the trees of the Lord which he has planted. Nor was there any occasion for Israel to set a king over them, for the Lord was their King. Those who bear fruit for the public good, are justly respected and honoured by all that are wise, more than those who merely make a figure. All these fruit-trees gave much the same reason for their refusal to be promoted over the trees; or, as the margin reads it, to go up and down for the trees. To rule, involves a man in a great deal both of toil and care. Those who are preferred to public trust and power, must forego all private interests and advantages, for the good of others. And those advanced to honour and dignity, are in great danger of losing their fruitfulness. For which reason, they that desire to do good, are afraid of being too great. Jotham compares Abimelech to the bramble or thistle, a worthless plant, whose end is to be burned. Such a one was Abimelech.

Commentary on Judges 9:22-29

(Read Judges 9:22-29)

Abimelech is seated in the throne his father refused. But how long does this glory last? Stay but three years, and see the bramble withered and burned. The prosperity of the wicked is short and fickle. The Shechemites are plagued by no other hand than Abimelech's. They raised him unjustly to the throne; they first feel the weight of his sceptre.

Commentary on Judges 9:30-49

(Read Judges 9:30-49)

Abimelech intended to punish the Schechemites for slighting him now, but God punished them for their serving him formerly in the murder of Gideon's sons. When God uses men as instruments in his hand to do his work, he means one thing, and they another. That, which they hoped would have been for their welfare, proved a snare and a trap, as those will certainly find, who run to idols for shelter; such will prove a refuge of lies.