Note 133 — DISCOURSE I.
Reading edition
The phrase probably means the Logos, the Personal "Word who is at once both the Word and the Life." For the double genitive, the second almost appositional to the first, conf. John ii. 21, xi. 13. This interpretation would seem to be that of Chrysostom. "If then the Word is the Life; and if this Christ who is at once the Word and the Life became flesh; then the Life became flesh." (In Joan. Evang. v.)