So Gideon said, "After the LORD gives me victory over Zebah and Zalmunna, I will return and tear your flesh with the thorns and briers of the wilderness."
From there Gideon went up to Peniel and asked for food, but he got the same answer.
References for Judges 8:8
So he said to the people of Peniel, "After I return in victory, I will tear down this tower."
By this time Zebah and Zalmunna were in Karkor with a remnant of 15,000 warriors -- all that remained of the allied armies of the east -- for 120,000 had already been killed.
Gideon circled around by the caravan route east of Nobah and Jogbehah, taking the Midianite army by surprise.
Zebah and Zalmunna, the two Midianite kings, fled, but Gideon chased them down and captured all their warriors.
After this, Gideon returned by way of Heres Pass.
There he captured a young man from Succoth and demanded that he write down the names of all the seventy-seven rulers and leaders in the town.
Gideon then returned to Succoth and said to the leaders, "Here are Zebah and Zalmunna. When we were here before, you taunted me, saying, 'You haven't caught Zebah and Zalmunna yet. Catch them first, and then we will feed your exhausted warriors.'"
Then Gideon took the leaders of the town and taught them a lesson, punishing them with thorns and briers from the wilderness.
He also knocked down the tower of Peniel and killed all the men in the town.