The thesis is devoted to a special actor of international relations - the Holy See, Roman Catholic Church representation. It analyzes its behaviour mainly in the issue of recognition of the new state with the majority use of an official discourse of its diplomatic delegates. Specifically, Holy See's position towards criteria for recognition of the new state, which are recommended for state actors, is observed through its rhetoric. Similarities and differences with the state actor are also scrutinized through comparison with a typical behaviour of small states in foreign policy. Case study of the analysis focuses on the question of Palestine and its worldwide recognition as a state, as this topic has possessed a significant role in foreign policy for long time.