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

and a strong tower hath been in the midst of the city, and thither flee do all the men and the women, and all the masters of the city, and they shut it behind them, and go up on the roof of the tower.

The sons of Arvad, and thy force, Are on thy walls round about, And short swordsmen in thy towers have been, Their shields they have hung up on thy walls round about, They--they have perfected thy beauty.