Source: SK-Sk (Spišska Kapitula) Antiphonale ScepusienseFolio: 125vSequence: 4Full text: Non ego te desero fili neque derelinquo sed majora tibi debentur pro fide Christi certaminaFeast: LaurentiiOffice: MGenre: APosition: 1.3Cantus ID: 003908