'Twelve' in the Bible

Then they came to Elim, where there were twelve wells of water and seventy palm trees, and they camped there by the water.

and Moses wrote down all the words of the Lord. Early in the morning he built an altar at the foot of the mountain and arranged twelve standing stones -- according to the twelve tribes of Israel.

The stones are to be for the names of the sons of Israel, twelve, according to the number of their names. Each name according to the twelve tribes is to be like the engravings of a seal.

"Take choice spices: twelve and a half pounds of free-flowing myrrh, half that -- about six and a quarter pounds -- of sweet-smelling cinnamon, six and a quarter pounds of sweet-smelling cane,

and twelve and a half pounds of cassia, all weighed according to the sanctuary shekel, and four quarts of olive oil.

The stones were for the names of the sons of Israel, twelve, corresponding to the number of their names. Each name corresponding to one of the twelve tribes was like the engravings of a seal.