'Twelve' in the Bible

For the choir director; according to Shushan Eduth. A Mikhtam of David, to teach; when he struggled with Aram-naharaim and with Aram-zobah, and Joab returned, and smote twelve thousand of Edom in the Valley of Salt.O God, You have rejected us. You have broken us;You have been angry; O, restore us.