Holy Writ vs Bible

Holy Writ and Bible both are nouns.

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

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

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

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