Popular dictionaries define the term “belief” in the following general terms: (1) a feeling of certainty that something exists or is good; (2) an opinion about which one feels sure. While the concept of belief is not, therefore, immediately associated with a religious context, it does not exclude it. When the “certainty that something exists” refers to a transcendent entity, it is close to the idea of faith understood as a religious belief in a particular God. The semantic dichotomy between faith and belief originates and is developed especially in the historical context of western Christianity, when, beginning with the “confession of faith” established by the Council of Chalcedon (451 ce), the concept of faith assumes an undoubtedly confessional character.