bethel vs synagogue

bethel

noun
  • A holy place. 

  • A chapel, especially one for sailors, converted from an old ship. 

synagogue

noun
  • A place of worship for Jews or Samaritans. 

  • A congregation of Jews or Samaritans for the purpose of worship or religious study. 

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