'Twelve' in the Bible

To you, my strength, I will sing praises. For God is my high tower, the God of my mercy. For the Chief Musician. To the tune of "The Lily of the Covenant." A teaching poem by David, when he fought with Aram Naharaim and with Aram Zobah, and Joab returned, and killed twelve thousand of Edom in the Valley of Salt.

{To the chief Musician upon Shushaneduth, Michtam of David, to teach; when he strove with Aramnaharaim and with Aramzobah, when Joab returned, and smote of Edom in the valley of salt twelve thousand.} O God, thou hast cast us off, thou hast scattered us, thou hast been displeased; O turn thyself to us again.