Good Book vs religious text

Good Book and religious text both are nouns.

Word	Noun	Adjective	Verb	Adverb
Good Book	Yes	No	No	No
religious text	Yes	No	No	No

As nouns, religious text is a hypernym of Good Book; that is, religious text is a word with a broader meaning than Good Book:

Other hypernyms of Good Book include religious writing, sacred text, sacred writing.

Good Book (noun)	religious text (noun)
the sacred writings of the Christian religions	writing that is venerated for the worship of a deity