Mass vs creed

Mass

noun
  • The principal liturgical service of the Church, encompassing both a scripture service (Liturgy of the Word) and a eucharistic service (Liturgy of the Eucharist), which includes the consecration and oblation (offering) of the host and wine. 

  • A similar ceremony offered by a number of Christian churches. 

  • A musical composition set to portions of the Mass. 

creed

noun
  • A reading or statement of belief that summarizes the faith it represents; a confession of faith for public use, especially one which is brief and comprehensive. 

  • The fact of believing; belief, faith. 

  • That which is believed; accepted doctrine, especially religious doctrine; a particular set of beliefs; any summary of principles or opinions professed or adhered to. 

verb
  • To provide with a creed. 

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