High Quality Content by WIKIPEDIA articles! Nicolaism (also Nicholaism, Nicolationism, or Nicolaitanism) is a Christian heresy, first mentioned (twice) in the Book of Revelation of the New Testament, whose adherents were called Nicolaitans, Nicolaitanes, or Nicolaites. According to Revelation 2, vv. 6 and 15, they were known in the cities of Ephesus and Pergamon. In this chapter, the church at Ephesus is commended for "hating the deeds of the Nicolaitans, which I also hate" and the church in Pergamon is blamed for "having them who hold their doctrines". There is no other first-hand evidence to give us certainty about the nature of this sect.