Christians generally don’t hear many sermons from those texts mentioning the Nicolaitans. The reasons might be as individual as the preachers, but it could also be because Revelation 2 is the only place they are mentioned and even at that not much is said about them. What we do know is that the doctrine of the Nicolaitans was an early Christian heresy, and that it was hated by Jesus. Evidently it was associated with the treachery of Balaam, the prophet who was for sale, and based on its name it likely had to do with its emphasis upon the distinction between “clergy” and “laity” also.