Genre: 
Full text: 
Miris modis repente liber ferrea Christo jubente vincla Petrus exuit ovilis ille pastor et rector gregis vitae recludit pascua et fontes sacros ovesque servat creditas arcet lupos | Patri perenne sit per aevum gloria tibique laudes concinamus inclytas aeterne nate sit superne spiritus honor tibi decusque sancta jugiter laudetur omne trinitas per saeculum | Amen
Fulltext source: 
Breviarium Romanum (Rome 1632)
Notes: 
Urban VIII revision (1632 breviary); cf. 008302c (and the doxology in 008302h) for an earlier standard version, which differs nearly completely