day of rest vs festival

day of rest

festival

adj
  • Pertaining to a feast or feast day; festive. (Now only as the noun used attributively.) 

noun
  • A feast or feast day. 

  • In mythology, a set of celebrations in the honour of a god. 

  • Fried cornbread. 

  • An event or series of special events centred on the celebration or promotion of some theme or aspect of the community, often held at regular intervals. 

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