Another reason is that when the holy man to be punished instead, then what is the benefit of jail or punishment.That is why we must have death even though when it was, but it did not help at all, according to its purpose.
Another reason is that when an innocent person be punished instead. What is the benefit of a prison or a penalty meant that why we need the death penalty even when it may not help nothing, according to its purpose.
One reason is when an innocent person to be punished. What is the advantage of the prison or the punishment!That is why we have execution when when I have but not helping it according to its purpose.