Final answer:
The excerpt explores the themes of the fall of the greatest and the consequences of sin.
Step-by-step explanation:
The two themes developed in this excerpt are that even the greatest can fall and that there are consequences for sin. The excerpt discusses how Lucifer, the brightest of angels, fell into hell and became Satan, unable to escape his miseries. This exemplifies the concept that even someone as powerful as Lucifer can experience a great fall due to sin, and that there are lasting consequences for one's actions.
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