In the next section, "Infirma nostri corporis/virtute firmans perpeti" ("Our weak frames fortify with thine eternal strength"), the tonic key of E♭ major returns with a variation of the opening theme.
Na seguinte sección, "Infirma nostri corporis/virtute firmans perpeti" ("Infunde na nosa feble carne a forza perpetua"), regresa a tonalidade principal de mi bemol cunha variación do tema principal.