When he had said this, he breathed on them and said to them, “Receive the Holy Spirit.’ John 20:22

Telling the story of Jesus many years after the events described had taken place, Saint John sometimes draws upon the insights of retrospect to comment upon what is being said. So it is with lines from Saint John Chapter 7, where John quotes the words of Jesus and then clarifies their meaning for his readers,

“Let anyone who is thirsty come to me, and let the one who believes in me