oath vs statement

oath

noun
  • A statement or promise which is strengthened (affirmed) by such a pledge. 

  • A light, irreverent or insulting appeal to a deity or other entity. 

  • A curse, a curse word. 

  • A solemn pledge or promise that invokes a deity, a ruler, or another entity (not necessarily present) to attest the truth of a statement or sincerity of one's desire to fulfill a contract or promise. 

statement

noun
  • A declaration or remark. 

  • A presentation of opinion or position. 

  • An instruction in a computer program, especially one that returns no value, as opposed to a function call. 

  • A document that summarizes financial activity. 

verb
  • To provide an official document of a proposition, especially in the UK a Statement of Special Educational Needs. 

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