The Hebrew word for violence is the Hebrew word “chamac” and here is how Strong’s dictionary renders the word:
2555. chamac, khaw-mawce'; from H2554; violence; by implication -. wrong; by metonymy. - unjust gain:--cruel (-ty), damage, false, injustice, X oppressor, unrighteous, violence (against, done), violent (dealing), wrong..
Thus the violence of trade that Satan was filled with within was unjust, cruel, damaging and oppressive and unrighteous. It is the strong desire to wrong others for commercial gain. It is the nature of the cold, calculating and complete predator. “Chamac” is reflected in the unjust, cruel, cunning and violent nature of many of the metaphors that picture Satan as “the dragon”, “the serpent” or “the wolf”.
Satan’s desire for trade developed a violent and cruel inner nature that was not present originally in him (he was created beautiful, perfect and holy). Satan is described as being created as the very seal of perfection, full of wisdom and beauty, and covered in precious stones. In the end he becomes a “horror”. Something has changed. Trade has made him violent. This violence that got Satan thrown from heaven may well have been murder, for Jesus describes Satan as “ a murderer from the beginning” (John 8:44).