'Twelve' in the Bible

And when he entered his house, he took a knife, and laying hold of his concubine he divided her, limb by limb, into twelve pieces, and sent her throughout all the territory of Israel.

So the congregation sent thither twelve thousand of their bravest men, and commanded them, "Go and smite the inhabitants of Ja'besh-gil'ead with the edge of the sword; also the women and the little ones.