In Lines 134-159: Beowulf is seen in “ the silvery metal of his mail shirt/gleaming with a smiths high art” because he is regarded as shining and brilliant.This represents nobility to the Danes. Only a noble hero is ready and deserves to fight for his king.
Beowulf appears to boast about his accomplishments and about his past deeds to Hrothgar, so as to gain the king´s confidence in order to be entrusted with the heroic challenge of killing Grendel and saving Herot.
The tone is "determined" to change, to get away from racism and injustice and to become real good people, to bring back dignity to those people who had been wrongly mistreated.
