The authorized English version of the New Testament is less clear in its presentation of demonology than is the original Greek because it translates diabolus , daimonion , and daimon by the same word, devil . The word diabolus (devil), meaning slanderer or false accuser , is only used in the New Testament in the singular and it appears thirty-five times. The words daimonion and daimon are used in the New Testament both in the singular and plural, but never interchangeably with diabolus , and they should be translated demon , evil, or unclean spirit . The word daimonion occurs fifty-six times, and daimon five times.