Which line in this excerpt from the poem  sir gawain and the green knight  shows that the king is awaiting something miraculous to happen at the christmas celebration?
of the service itself i need say no more,
for well you will know no title was wanting,
another noise and a new was well-nigh at hand,
that the lord might have leave his life to nourish.  .  .
the stout king stands in state
till a wonder shall appear;
he leads, with heart elate,
high mirth in the new year.  .  .
and the first course come to that company fair,
there hurtles in at the hall-door an unknown rider,
one the greatest on ground in growth of his frame: