Complex sentence: The verse is shouted out by Nimrod, who is a giant in the epic poem, but not one in Biblical texts, he is portrayed as one due to the similarities between him and the Giant's revolt, punished and banished to the Giants' Well.
Split into simpler sentences: The verse is shouted out by Nimrod, who is a giant in the epic poem, but not one in Biblical texts. He is portrayed as one due to the similarities between him and the Giant's revolt, punished and banished to the Giants' Well.