2 Samuel 2:26-28

26Then Abner called to Joab, and said, Shall the sword devour for ever? knowest thou not that it will be bitterness in the latter end? how long shall it be then, before thou wilt bid the people return from following their brethren? 27And Joab said, As God liveth, unless thou hadst spoken, surely then in the morning the people had gone up every one from following his brother.12 28So Joab blew a trumpet, and all the people stood still, and pursued Israel no more, neither fought they any more.