THE FULL ARTICLE — from the International Standard Bible Encyclopedia

The International Standard Bible Encyclopedia (1915), general editor James Orr — public domain, printed whole.

un-be-lev'-er: This word follows closely the lines of "unbelief" (which see) in its relation to originals. Once only (Ac 14:2) it represents the participle apeithountes, "disobeying (ones)." Elsewhere (nine cases) it represents apistos, "faithless," "without faith." In six of these passages (all in 1 and 2 Corinthians) it denotes the unconverted pagan as distinguished from the convert. In the other passages (Lu 12:46; Tit 1:15; Re 21:8) the reference is to the unbelief which comes of moral resistance to God.