Told off

Hyder (161) points out that the expression means counted off, "as one would pick a man out of a rank of soldiers for some unpleasant duty." I suppose that would be used in place of the less dignified "Eeny meeny miny mo … " The roots of the term also explain why bank clerks are called "tellers." I knew you'd like to know.

Context: 
told off to be killed
Opera: 
Act: 
Act II