The paper considers the peculiarities of the functioning of repetition in the Lord's Prayer and musical arrangement. It is established that a high degree of rhythmicization of prayer texts is created by means of various types of repetition. It is revealed that lexical and lexico-syntactic repetitions are used in the Lord's Prayer. It has been found that the rhythmic structure of the prayer text predetermines the selection of musical techniques and means in the arrangement of the Lord's Prayer in P.I. Tchaikovsky's Liturgy of St. John Chrysostom: repetition remains the leading principle of the organization of the chant's sound structure and manifests itself in the reproduction of similar rhythmic structures and melodic patterns.
