Bible Verses About Towers: Were used as citadels in time of war

And there was in the midst of the city a high tower, to which both the men and the women were fled together, and all the princes of the city, and having shut and strongly barred the gate, they stood upon the battlements of the tower to defend themselves.

The men of Arad were with thy army upon thy walls round about: the Pygmeans also that were in thy towers, hung up their quivers on thy walls round about: they perfected thy beauty.