Rauner 003203 Folio 032r Chant 2 Iste sanctus pro lege
"Iste sanctus pro lege," the first responsory from the first nocturn of Matins, Common of One Martyr
Iste sanctus pro lege dei sui certavit usque ad mortem et a verbis impiorum non timuit | Fundatus enim erat supra firmam petram