Karasev Н. 2018. The term μυστήριον in early Christian texts and its role in the formation of Christian mysticism and mystical theology in the Ante-Nicene period. Theological Bulletin. 4 (31) (Dec. 2018), 63–92. DOI:https://doi.org/10.31802/2500-1450-2018-31-4-63-92.