This controversy connects itself with another as to the genuineness of certain verses which are prefixed or added to the eighteen of the text in the Missal. There are, in fact, three texts of the hymn: (1) That of the Missal, which is generally followed, and will be found at the end of this chapter. (2) That of the Mantuan marble tablet, which prefixes four verses:
1. Cogita, anima fidelis,
Ad quid respondere velis
Christo venture de coelis.
2. Cum deposcit rationem
Ob boni omissionem,
Ob mali commissionem.
3. Dies illa, dies irae,
Quam conemur praevenire
Obviamque Deo ire.