The guiding idea of the hereby paper constitute considerations on the scope of competence – both preliminary and professional – which should display teachers of not typical languages. The entirety of divagating was based on the experience of teaching the Coptic language to European students. The emphasis was on such elements of professional knowledge which – due to the specifi city of the cultural circle of Egyptian Christians – are gaining, in this case, a higher importance than in relation to teachers of congressional languages (e.g. religious-historical aspect of teacher’s general knowledge). The point of departure for theoretical considerations constituted the didactic experience of the author as well as the results of the questionnaire research performed among students of UPJPII, who were learning the Coptic language in years 2009–2014.