'Twelve' in the Bible

and cometh in unto his house, and taketh the knife, and layeth hold on his concubine, and cutteth her in pieces to her bones -- into twelve pieces, and sendeth her into all the border of Israel.

And the company send there twelve thousand men of the sons of valour, and command them, saying, 'Go -- and ye have smitten the inhabitants of Jabesh-Gilead by the mouth of the sword, even the women and the infants.