Beowulf believes the outcome of all his efforts are determined by God and fate. Although viewed as a pagan tale, the poem contains many overt nods to Christianity. The belief was that the ultimate decision of one's death lay in God's grace.
God
In this line, Beowulf is expressing the belief that things will happen as they are destined to, regardless of his actions or efforts. He is acknowledging the role of fate in determining the outcome of events, highlighting a sense of acceptance and resignation to the course of destiny.
In Beowulf, the characters are believed to have limited control over their fates as their lives are often shaped by fate and destiny. Despite their courage and actions, events in the story are often determined by preordained outcomes or divine intervention, such as the prophecy of Beowulf's fate or the influence of fate on Grendel. The characters can only do their best and hope for the best outcome, even if it is ultimately beyond their control.
him dieing killing the dragon, but he died finishing what was started.
Hrothgar told Beowulf not to become full of himself and succumb to his selfish desires."Choose, dear Beowulf, the better part, eternal rewards. Do not give way to pride. For a brief while your strength is in bloom but it fades quickly..." (1759-1762)Unfortunately Beowulf does not heed Hrothgar's warning in the Hall of Heorot, a speech that foreshadows the story's outcome. for more on this important speech, see the related links section below.
Beowulf's people felt happy and confident about him going to fight Grendel, because the omens predicting the outcome of the battle were good.
the infantry
"In his far-off home Beowulf, Higlac's Follower and the strongest of the Geats-greater and stronger than anyone anywhere in this world-heard how Grendel filled nights with horror and quickly commanded a boat fitted out, proclaiming that he'd go to that famous king. Would sail across the sea to Hrothgar now when help was needed."
The outcome of some events are cannot be determined in advance. There is an element of uncertainty in the outcome. Probability is a measure of this uncertainty.
grendel gets away, but he is fatally wounded and goes to his den to die.
Flase
Beowulf tears Grendel arm off and Grendel dies. Beowulf hangs the arm up on a wall but it disappears in the morning.