Bible vs Christian Bible

Bible and Christian Bible both are nouns.

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

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

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

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

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