Don't you say, 'There are yet four months until the harvest?' Behold, I tell you, lift up your eyes, and look at the fields, that they are white for harvest already.
The word Christ is a Greek word. It is the translation into Greek of the Hebrew word Messiah. And so, you have the Greek word Christ, but it is a word that is the translation of the word Messiah. So John points that out here. "I know that when the Messiah comes," which in Greek is called Christ, Christos.