So Joab blew a trumpet Caused a retreat to be sounded. Neither fought they any more Neither at that time, nor probably at any other, in a pitched battle. And Abner and his men walked all that night He made the best of his way to Jordan; crossed it, and rested nowhere until he came to Mahanaim, that he might get out of the reach of David's forces.
Related Commentaries of 2 Samuel 2:28
2 Samuel 2:28-29
28 So Joab blew a trumpet, and all the people stood still, and pursued after Israel no more, neither fought they any more.
29 And Abner and his men walked all that night through the plain, and passed over Jordan, and went through all Bithron, and they came to Mahanaim.