Judges 9:43-47

And he took the people, and divided them into three companies, and laid wait in the field, and looked, and, behold, the people were come forth out of the city; and he rose up against them, and smote them.

And Abimelech, and the company that was with him, rushed forward, and stood in the entering of the gate of the city: and the two other companies ran upon all the people that were in the fields, and slew them.

And Abimelech fought against the city all that day; and he took the city, and slew the people that was therein, and beat down the city, and sowed it with salt.

And when all the men of the tower of Shechem heard that, they entered into an hold of the house of the god Berith.

And it was told Abimelech, that all the men of the tower of Shechem were gathered together.