What rhetorical device would be using the term Creator instead of God?

The rhetorical device being used by substituting the term "Creator" instead of "God" is called euphemism.

To identify this rhetorical device, you need to recognize the substitution of a word or phrase with a milder or less direct expression that carries a similar meaning. In this case, the term "God" is being replaced with the word "Creator." This substitution can be seen as an attempt to use a more inclusive or neutral term, avoiding religious connotations or potential offense to different belief systems.

To determine the rhetorical device being employed, carefully analyze the context in which the term is used. Look for any specific reasons or intended effects behind the choice of using "Creator" instead of "God." Understanding the author's or speaker's intention and considering the audience's potential reaction will help you recognize the use of euphemism.