Holy Writ vs Christian Bible

Holy Writ and Christian Bible both are nouns.

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

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

Holy Writ and Christian Bible: the sacred writings of the Christian religions

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

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