Source: PL-PE 119 (450) Graduale Cisterciense, pars de sanctisFolio: 002rSequence: 4Feast: Joannis Evang.Office: MASSGenre: AllCantus ID: g00567Mode: 2Full text: Alleluja Hic est discipulus ille qui testimonium perhibet de his et scimus quia verum est testimonium ejus