eon vs eternal now

eon

noun
  • Eternity. 

  • A period of 1,000,000,000 years. 

  • The longest geochronologic unit, being a period of hundreds of millions of years; subdivided into eras. 

  • A spirit being emanating from the Godhead. 

  • A long period of time. 

eternal now

noun
  • The nature of God's existence which is outside of time; the nature of a soul's existence in a supposed timeless afterlife. 

  • The condition in which all reality is experienced in the present, with the past contained only in memory and the future only in anticipation or speculation. 

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