Bible vs Holy Writ

Bible and Holy Writ both are nouns.

Word	Noun	Adjective	Verb	Adverb
Bible	Yes	No	No	No
Holy Writ	Yes	No	No	No

As nouns, Bible and Holy Writ are synonyms defined as:

Other synonyms of Bible include Book, Christian Bible, Good Book, Holy Scripture, Scripture, Word, Word of God.

Bible (noun)	Holy Writ (noun)
the sacred writings of the Christian religions	the sacred writings of the Christian religions