2 Samuel vs II Samuel

2 Samuel and II Samuel both are nouns.

Word	Noun	Adjective	Verb	Adverb
2 Samuel	Yes	No	No	No
II Samuel	Yes	No	No	No

As nouns, 2 Samuel and II Samuel are synonyms defined as:

2 Samuel and II Samuel: the second of two books of the Old Testament that tell of Saul and David

2 Samuel (noun)	II Samuel (noun)
the second of two books of the Old Testament that tell of Saul and David	the second of two books of the Old Testament that tell of Saul and David