As our discourse is made up and completed by departing and succeeding syllables, so also men themselves whose faculty discourse is, by departure and succession make up and complete the order of this world, which is built up with the mere temporal beauty of things. But in the future life, seeing that the Word which we shall enjoy is formed by no departure and succession of syllables, but all things which it has it has everlastingly and at once, so those who partake of it, to whom it alone will be life, shall neither depart by death, nor succeed by birth, even as it now is with the angels; as it follows, For they are equal to the angels.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: de Quæst. Ev. ubi sup.