It is well known that the Only-begotten Son is called the Word of the Father; as in John, “In the beginning was the Word.” [John 1:1] But it is by our own speech that we are known; the voice sounds that the words may be heard. Thus John the forerunner of the Lord’s coming is called, “The voice,” because by his ministry the voice of the Father is heard by men.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: Hom. in Ev., i. 7