'Twelve' in the Bible
Now select for yourselves twelve men from the tribes of Israel, one per tribe.
"Select for yourselves twelve men from the people, one per tribe.
Instruct them, 'Pick up twelve stones from the middle of the Jordan, from the very place where the priests stand firmly, and carry them over with you and put them in the place where you camp tonight.'"
Joshua summoned the twelve men he had appointed from the Israelites, one per tribe.
The Israelites did just as Joshua commanded. They picked up twelve stones, according to the number of the Israelite tribes, from the middle of the Jordan as the Lord had instructed Joshua. They carried them over with them to the camp and put them there.
Joshua also set up twelve stones in the middle of the Jordan in the very place where the priests carrying the ark of the covenant stood. They remain there to this very day.
Now Joshua set up in Gilgal the twelve stones they had taken from the Jordan.
Twelve thousand men and women died that day, including all the men of Ai.
Kephar Ammoni, Ophni, and Geba -- a total of twelve cities and their towns.
Their territory included Kattah, Nahalal, Shimron, Idalah, and Bethlehem; in all they had twelve cities and their towns.
Merari's descendants by their clans were allotted twelve cities from the tribes of Reuben, Gad, and Zebulun.
The Merarite clans (the remaining Levites) were allotted twelve cities.