A Tower is a structure taller than its diameter; can stand alone or be attached to a larger building. A citadel; a fortress; hence, a defence. Thou hast been a shelter for me, and a strong tower from the enemy.--Ps. lxi. 3.The Tower Christian Symbol represents God our Refuge.
Ps. 94:22 But the Lord has become my fortress, and my God the rock in whom I take refuge.
Images of Angels show in their hands they hold a tower symbolizing their judicial power.
The Tower of Babel
(Genesis 11:1-11) a tower built by Noah's descendants (probably in Babylon) who intended it to reach up to heaven; God foiled them by confusing their language so they could no longer understand one another.
And they said, Go to, let us build us a city and a tower, whose top may reach unto heaven; and let us make us a name, lest we be scattered abroad upon the face of the whole earth.
5And the LORD came down to see the city and the tower, which the children of men builded.
6And the LORD said, Behold, the people is one, and they have all one language; and this they begin to do: and now nothing will be restrained from them, which they have imagined to do.
7Go to, let us go down, and there confound their language, that they may not understand one another's speech.