Before the Christ offered the Man the salvation he judged him. The good in ihm was never enought and the bad, no matter at which degree, was the bad in itself. Nietzsche saw that in reality those, who wanted to overcome the bad either lied or losed themself. The man tends to beauty and eternity or not, but he is not beyond good and bad because also the one who turns away from the good, cannot overcomes himself, since he is either no longer himself or the last man and to his equal like an animal to his herd.
They want to know how the man can be overcome, but the one who seeks and can believe will find the loyalty to his race.