I found the following passages very upsetting and so was not inclined to comment very much. You may choose to skip briefly through the next couple of depressing studies until we get to Sampson (again, a good Sunday School story but still a dark period for Israel).
But these studies do show the depths that the tribes of Israel had sunk to at this point, so we probably need to read on. Perhaps people could take it in turn to read, but allow time for comments or questions. Note too that when God steps in it is not as saviour, but here he takes on the role of Judge.
It would be well to point out that Jerub-Baal was the name given to Gideon.
Read Judges 8:28-35
28 Thus Midian was subdued before the Israelites and did not raise its head again. During Gideon’s lifetime, the land had peace for forty years.
29 Jerub-Baal son of Joash went back home to live. 30 He had seventy sons of his own, for he had many wives. 31 His concubine, who lived in Shechem, also bore him a son, whom he named Abimelek. 32 Gideon son of Joash died at a good old age and was buried in the tomb of his father Joash in Ophrah of the Abiezrites.
33 No sooner had Gideon died than the Israelites again prostituted themselves to the Baals. They set up Baal-Berith as their god 34 and did not remember the Lord their God, who had rescued them from the hands of all their enemies on every side. 35 They also failed to show any loyalty to the family of Jerub-Baal (that is, Gideon) in spite of all the good things he had done for them.
Now read Judges 9:1-57
1 Abimelek son of Jerub-Baal went to his mother’s brothers in Shechem and said to them and to all his mother’s clan, 2 ‘Ask all the citizens of Shechem, “Which is better for you: to have all seventy of Jerub-Baal’s sons rule over you, or just one man?” Remember, I am your flesh and blood.’
3 When the brothers repeated all this to the citizens of Shechem, they were inclined to follow Abimelek, for they said, ‘He is related to us.’ 4 They gave him seventy shekels of silver from the temple of Baal-Berith, and Abimelek used it to hire reckless scoundrels, who became his followers. 5 He went to his father’s home in Ophrah and on one stone murdered his seventy brothers, the sons of Jerub-Baal. But Jotham, the youngest son of Jerub-Baal, escaped by hiding. 6 Then all the citizens of Shechem and Beth Millo gathered beside the great tree at the pillar in Shechem to crown Abimelek king.
7 When Jotham was told about this, he climbed up on the top of Mount Gerizim and shouted to them, ‘Listen to me, citizens of Shechem, so that God may listen to you. 8 One day the trees went out to anoint a king for themselves. They said to the olive tree, “Be our king.”
9 ‘But the olive tree answered, “Should I give up my oil, by which both gods and humans are honoured, to hold sway over the trees?”
10 ‘Next, the trees said to the fig-tree, “Come and be our king.”
11 ‘But the fig-tree replied, “Should I give up my fruit, so good and sweet, to hold sway over the trees?”
12 ‘Then the trees said to the vine, “Come and be our king.”
13 ‘But the vine answered, “Should I give up my wine, which cheers both gods and humans, to hold sway over the trees?”
14 ‘Finally all the trees said to the thorn-bush, “Come and be our king.”
15 ‘The thorn-bush said to the trees, “If you really want to anoint me king over you, come and take refuge in my shade; but if not, then let fire come out of the thorn-bush and consume the cedars of Lebanon!”
16 ‘Have you acted honourably and in good faith by making Abimelek king? Have you been fair to Jerub-Baal and his family? Have you treated him as he deserves? 17 Remember that my father fought for you and risked his life to rescue you from the hand of Midian. 18 But today you have revolted against my father’s family. You have murdered his seventy sons on a single stone and have made Abimelek, the son of his female slave, king over the citizens of Shechem because he is related to you. 19 So have you acted honourably and in good faith towards Jerub-Baal and his family today? If you have, may Abimelek be your joy, and may you be his, too! 20 But if you have not, let fire come out from Abimelek and consume you, the citizens of Shechem and Beth Millo, and let fire come out from you, the citizens of Shechem and Beth Millo, and consume Abimelek!’
21 Then Jotham fled, escaping to Beer, and he lived there because he was afraid of his brother Abimelek.
22 After Abimelek had governed Israel for three years, 23 God stirred up animosity between Abimelek and the citizens of Shechem so that they acted treacherously against Abimelek. 24 God did this in order that the crime against Jerub-Baal’s seventy sons, the shedding of their blood, might be avenged on their brother Abimelek and on the citizens of Shechem, who had helped him murder his brothers. 25 In opposition to him these citizens of Shechem set men on the hilltops to ambush and rob everyone who passed by, and this was reported to Abimelek.
26 Now Gaal son of Ebed moved with his clan into Shechem, and its citizens put their confidence in him. 27 After they had gone out into the fields and gathered the grapes and trodden them, they held a festival in the temple of their god. While they were eating and drinking, they cursed Abimelek. 28 Then Gaal son of Ebed said, ‘Who is Abimelek, and why should we Shechemites be subject to him? Isn’t he Jerub-Baal’s son, and isn’t Zebul his deputy? Serve the family of Hamor, Shechem’s father! Why should we serve Abimelek? 29 If only this people were under my command! Then I would get rid of him. I would say to Abimelek, “Call out your whole army!”‘
30 When Zebul the governor of the city heard what Gaal son of Ebed said, he was very angry. 31 Under cover he sent messengers to Abimelek, saying, ‘Gaal son of Ebed and his clan have come to Shechem and are stirring up the city against you. 32 Now then, during the night you and your men should come and lie in wait in the fields. 33 In the morning at sunrise, advance against the city. When Gaal and his men come out against you, seize the opportunity to attack them.’
34 So Abimelek and all his troops set out by night and took up concealed positions near Shechem in four companies. 35 Now Gaal son of Ebed had gone out and was standing at the entrance of the city gate just as Abimelek and his troops came out from their hiding-place.
36 When Gaal saw them, he said to Zebul, ‘Look, people are coming down from the tops of the mountains!’
Zebul replied, ‘You mistake the shadows of the mountains for men.’
37 But Gaal spoke up again: ‘Look, people are coming down from the central hill, and a company is coming from the direction of the diviners’ tree.’
38 Then Zebul said to him, ‘Where is your big talk now, you who said, “Who is Abimelek that we should be subject to him?” Aren’t these the men you ridiculed? Go out and fight them!’
39 So Gaal led out the citizens of Shechem and fought Abimelek. 40 Abimelek chased him all the way to the entrance of the gate, and many were killed as they fled. 41 Then Abimelek stayed in Arumah, and Zebul drove Gaal and his clan out of Shechem.
42 The next day the people of Shechem went out to the fields, and this was reported to Abimelek. 43 So he took his men, divided them into three companies and set an ambush in the fields. When he saw the people coming out of the city, he rose to attack them. 44 Abimelek and the companies with him rushed forward to a position at the entrance of the city gate. Then two companies attacked those in the fields and struck them down. 45 All that day Abimelek pressed his attack against the city until he had captured it and killed its people. Then he destroyed the city and scattered salt over it.
46 On hearing this, the citizens in the tower of Shechem went into the stronghold of the temple of El-Berith. 47 When Abimelek heard that they had assembled there, 48 he and all his men went up Mount Zalmon. He took an axe and cut off some branches, which he lifted to his shoulders. He ordered the men with him, ‘Quick! Do what you have seen me do!’ 49 So all the men cut branches and followed Abimelek. They piled them against the stronghold and set it on fire with the people still inside. So all the people in the tower of Shechem, about a thousand men and women, also died.
50 Next Abimelek went to Thebez and besieged it and captured it. 51 Inside the city, however, was a strong tower, to which all the men and women – all the people of the city – had fled. They had locked themselves in and climbed up on the tower roof. 52 Abimelek went to the tower and attacked it. But as he approached the entrance to the tower to set it on fire, 53 a woman dropped an upper millstone on his head and cracked his skull.
54 Hurriedly he called to his armour-bearer, ‘Draw your sword and kill me, so that they can’t say, “A woman killed him.”’ So his servant ran him through, and he died. 55 When the Israelites saw that Abimelek was dead, they went home.
56 Thus God repaid the wickedness that Abimelek had done to his father by murdering his seventy brothers. 57 God also made the people of Shechem pay for all their wickedness. The curse of Jotham son of Jerub-Baal came on them.
Do we see any repentance, or turning to God?
Now read Judges 10:1-5
1 After the time of Abimelek, a man of Issachar named Tola son of Puah, the son of Dodo, rose to save Israel. He lived in Shamir, in the hill country of Ephraim. 2 He led Israel for twenty-three years; then he died, and was buried in Shamir.
3 He was followed by Jair of Gilead, who led Israel for twenty-two years. 4 He had thirty sons, who rode thirty donkeys. They controlled thirty towns in Gilead, which to this day are called Havvoth Jair. 5 When Jair died, he was buried in Kamon.
Israel was no longer a united nation, worshipping the one true God, and being led by him. It had simply reverted to gang culture where if anyone could raise an army, he may well be considered a ruler – until he too died.