So they stood up and were counted off – twelve men for Benjamin and Ish-Bosheth son of Saul, and twelve for David. (NIV)
Then there arose and went over by number--twelve of Benjamin who were with Ish-bosheth son of Saul, and twelve of the servants of David. (AMP)
Then there arose and went over by number twelve of Benjamin, which pertained to Ishbosheth the son of Saul, and twelve of the servants of David. (KJV)