The third section of the extract has the function to describe Beowulf’s warriors actions to defend their lord, which is involved in a fight with Grendel the monster.
The author seems to drive the attention to the effort that the warriors do to kill the monster without any success, underlining Grendel’s exceptionality and the warriors’ courage and strength.
To do this, the author relies on allitteration of the sound “-s” like in “stalwart”, “seeking”, straight” and “struggle”, and to the expression “time and again”, that implies that they help their lord repeatedly, which underlines their courage and loyalty.
Their strength is inferable by the fact that they seem to cut with their “ancestral blades” “straight to the soul” of the monster; but all their struggles are useless, because their “demon opponent”, as said with a kenning, can’t be damaged by “any blade on earth”. The last phrase is repeated another time with the kenning “no blacksmith’s art”, to give emphasis to Grendel’s exceptionality; in fact he even conjures “the harm from the cutting edge of every weapon”.
The last section tells about the end of the fight: in spite of Grendel’s quality, Beowulf wins. This section is divided in two parts: the first describes Grendel’s condition, while the second narrates his and Beowulf’s end.
In the first part the monster has a tremendous wound on his shoulder, with even split sinews and burst bone-lappings.
Beowulf’s strength, even thought what said in the second section, is superior than the monster’s, because he must have killed him with his bare hands due to the fact that no blade can damage Grendel. So the hero “is granted the glory of winning”, while dies in his “desolate lair”. The juxtaposition of Beowulf’s glory and Grendel’s defeat, is emphasized by the lack of conjunctions, which highlights the good’s end contrast with the evil’s one.