Old Testament vs 1 Chronicles

Old Testament and 1 Chronicles both are nouns.

Word	Noun	Adjective	Verb	Adverb
Old Testament	Yes	No	No	No
1 Chronicles	Yes	No	No	No

Old Testament (noun)	1 Chronicles (noun)
the collection of books comprising the sacred scripture of the Hebrews and recording their history as the chosen people; the first half of the Christian Bible	the first of two Old Testament books telling the history of Judah and Israel until the return from the Babylonian Captivity in 536 BC