The article deals with manuscript XIII G 25 of the National Library of the Czech Republic, which contains an explanation of part of the Book of Psalms (109-118). The explanation is attributed to the Master of the Prague University and preacher in the Prague Bethlehem Chapel Václav of Dráchov (about 1395-1469). The author analyses the contents of the codex, the relationship between it and further manuscripts, its provenience and finally, the research results in this field are summarized.