(495-500) Unferth was "unwilling" for Beowulf to be better known and loved then he was so he attempted to belittle him in front of all that gathered in the hall.
Beowulf, with his fatalistic beliefs, and prizing honor above all else, chooses to fight Grendel without weapons. He swears an oath to all who are present, .
Therefore (so that Hygelac, my lord, may rest content over my conduct) I deny myself the use of a sword and a broad yellow shield in battle; but I shall grapple with this fiend hand to hand; we shall fight for our lives, foe against foe; and he whom death takes off must resign himself to the judgment of God. (425-430) .
therefore, assuring more fame and glory if he is the one that survives the battle and no shame if he loses.
Grendel's fatal flaw was his belief that his power was so great that there could be no retribution, no avenging death; he had started to think that he could not be killed. He knew that because of his evil deeds there would be no honor bestowed upon him in his last hours. God had already "condemned him" and "sent him into exile, far from mankind, because of his crime". (105-110) This is a perfect example of two separate views on death all related to ones honor. Since Grendel was without honor he was afraid to die so the monster had cheated by placing a spell on all keen edged weapons so that they would not harm him. .
Grendel's mother is driven to avenge her son, but because she feared death, she slew the closest person, Aeshere, Hrothgar's best friend and counselor instead of confronting Beowulf who had killed her son. This spurs Beowulf to go after her. Here he again increases his fame "the days on earth for every one of us are numbered; he who may should win renown before his death; that is a warrior's best memorial when he has departed from this world". (1370-1375) This last line shows, once again, Beowulf's desire to win a reputation of heroism, honor and glory before his death.