Then he  wrote  a  letter  the second  time  to  them,  saying ,  If  ye   be   mine, and   if  ye  will  hearken  unto my  voice ,  take  ye  the  heads  of the  men  your  master  's  sons , and  come  to  me to  Jezreel  by  tomorrow  this  time . Now the  king  's  sons ,   being  seventy  persons ,   were  with  the great  men  of the  city , which brought them  up .