Beelzebub vs Jack Ketch

Beelzebub

name

  • A Canaanite deity worshipped at Ekron. 

  • Satan, the Devil. 

Jack Ketch

noun

  • the gallows 

  • death 

  • a public executioner 

  • the devil 

How often have the words Beelzebub and Jack Ketch occurred in a corpus of books? (source: Google Ngram Viewer )