[In a possibly life-threatening situation, obeying a command like that would imply spontaneous trust or suicidal stupidity. Though Neville stops resisting, he's aware of how costly his choice could be, to have faith. His attention focuses on the scythe, half-expecting the man to bring it down upon his head.]
One day! -- Actually ooh I just youtubed a bit to hear Arumat's voice -- this is kind of awesome. :O