'Twelve' in the Bible

"The Sea" stood on top of twelve bulls. Three faced northward, three westward, three southward, and three eastward. "The Sea" was placed on top of them, and they all faced outward.

the big bronze basin called "The Sea" with its twelve bulls underneath,

There were twelve statues of lions on the six steps, one lion at each end of each step. There was nothing like it in any other kingdom.

Manasseh was twelve years old when he became king, and he reigned for fifty-five years in Jerusalem.