2 Samuel 17:1-4

Moreover Ahithophel said unto Absalom, Let me now choose out twelve thousand men, and I will arise and pursue after David this night: and I will come upon him while he is weary and weak handed, and will make him afraid: and all the people that are with him shall flee; and I will smite the king only: and I will bring back all the people unto thee: the man whom thou seekest is as if all returned: so all the people shall be in peace. And the saying pleased Absalom well, and all the elders of Israel.