Final answer:
The noble and global theme supported by lines 78-80 in Beowulf is that physical strength equates to strength of character.
Step-by-step explanation:
The noble and global theme supported by lines 78-80 in Part XII of Beowulf is the concept that physical strength is the same as strength of character. In these lines, the speaker refers to the defeated foe of heaven who is held too firmly and is heard hymns of horror, howling, and bewailing his sorrow. This suggests that only the strong are allowed into heaven and that enemies of heaven will suffer defeat. The poem implies that physical strength is a reflection of one's inner strength and character.
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