The second treatise is addressed to J ohn the deacon (" Ad Joannem Diaconum "), and its subject is " Utrum Pater et Filius et Spiritus Sanctus de divinitate substantialiter praedicentur."
It was an act of adoration or thanksgiving, much longer in Eastern than in Western rituals, but in both classes of rituals beginning with the form" Lift up your hearts,"and ending with the Ter Sanctus or Trisagion.
Sanctus, " holy"), the term originally applied, e.g.
In liturgical use the term is applied to that portion of the Eucharistic service which immediately precedes the canon or central portion; the preface, which begins at the words Vere dignum, " It is very meet, right, &c.," is ushered in, in all liturgies, with the Sursum Corda, "Lift up your hearts," and ends with the Sanctus, "Holy, Holy, Holy, &c."
(1876), containing 29 poems, and Sanctus Romanus Veterum Melodorum P'inceps (1888), with three additional hymns from the monastery of St John in Patmos.