The article presents data about one copy of The Blessings of the Waters on the Eve of Epiphany found in a prayer-book from XIII – XIV c. kept at the Zograf Monastery on Mount Athos. This copy of the text is very similar to The Old Bulgarian Blessings of the Waters on the Eve of Epiphany from X – XI c. The whole text of this copy of The Blessings of the Waters on the Eve of Epiphany, which until recently was unknown in the scientific sphere, is published in this article for the first time; the lexical and textological doublets are also commented on