'Twelve' in the Bible

For the dedication of this temple of God they offered one hundred bulls, two hundred rams, four hundred lambs, and twelve male goats for the sin of all Israel, according to the number of the tribes of Israel.

Then I set apart twelve of the leading priests, together with Sherebiah, Hashabiah, and ten of their brothers,

The exiles who were returning from the captivity offered burnt offerings to the God of Israel -- twelve bulls for all Israel, ninety-six rams, seventy-seven male lambs, along with twelve male goats as a sin offering. All this was a burnt offering to the Lord.