But there was a strong tower within the city
 The tower of Shechem was without the city, but this within, as towers generally are: 
 and hither fled all the men and women, and all they of the city;
 men, women, and children, man and maid servants, all the inhabitants of the city; the tower being a large place, having not only many rooms in it, but perhaps a large area in the midst of it, as well as it had battlements on the top of it: 
 and shut it to them;
 the gates of it, and which no doubt they strongly barred and bolted, to keep out the enemy: 
 and gat them up to the top of the tower;
 to observe the motions of Abimelech, and annoy him as much as they could with what they carried with them, as stones, and the like.