And in what eternal life is, He then shews: And this is life eternal, that they might know Thee, the only true God. To know the only true God is life, but this alone does not constitute life. What else then is added? And Jesus Christ whom Thou hast sent.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: iii. de Tr. c. 14