Above: This is considered the The True Grail sigil of Lucifer, allegedly stolen by the Catholic Church.
Above: This is the Dukanté sigil for Lucifer.
Above: This one is often called the Seal of Satan, which I find odd considering they are two different Dæmons (unless this is not the case in Satanic traditions) and comes from the the 16th century Italian Grimoirium Verum, or "Grimoire of Truth."
The KJV translations are inaccurate and at times, words are substituted not knowing how Hebrew terms should translate to Latin.
Depending on chapter and verse, it represents a designation, planet, metaphor for a role a person plays in the story being told.
None of these are demons, angels, devils or Satan.