But even if we [shluchim] or a malach from Shomayim should pose as maggidim [for Moshiach] and make a hachrazah  proclamation  to you of a "Besuras HaGeulah" other than that Besuras HaGeulah which we preached to you, let such a one be ARUR HAISH  YEHOSHUA 6:26  and set under cherem  ban of destruction  and onesh Gehinnom  damnation .