Quare in perpetuum oblivisceris nostri

Source: 
Praha (Prague), Strahovská knihovna (Library of the Royal Canonry of Premonstratensians at Strahov), DE I 7
Folio: 
161v
Sequence: 
2
Feast: 
Sabbato Sancto
Office/Mass: 
M
Genre: 
L
Position: 
18
Cantus ID: 
Lamen5:20
Manuscript Reading Full Text (standardized spelling): 
Quare in perpetuum oblivisceris nostri derelinques nos in longitudinem dierum