Final answer:
The crest's motto "In God is our trust" appears to be taken from the fourth stanza of "The Star-Spangled Banner," the national anthem of the United States, written in 1814 by Francis Scott Key.
Step-by-step explanation:
The crest's motto that is referenced here seems to be derived from a historical document or anthem. Considering the context provided, the closest match to the phrase "In God is our trust" is from the fourth stanza of "The Star-Spangled Banner," the national anthem of the United States of America, penned by Francis Scott Key in 1814. This particular line reflects a patriotic and religious sentiment that was commonly incorporated into official mottos and crests throughout history.
More specifically, the lines:
Then conquer we must, when our cause it is just,
And this be our motto: "In God is our trust"
suggest that the crest's motto that the student is asking about is likely taken from a patriotic source, emblematic of a nation's faith in divine providence and its commitment to justice. Without more specific information about the crest in question, it's difficult to pinpoint the exact origin, but it's clear that the motto aligns with the principles depicted in this historical piece of American literature.