And it shall come to  pass , that when they make a long  blast  with the  ram  's  horn ,   and   when ye  hear  the  sound  of the  trumpet ,  all  the  people  shall  shout  with a  great  shout ; and the  wall  of the  city  shall fall  down  flat , and the  people  shall ascend  up  every  man  straight  before  him.