At Cana, Jesus changed the water into "good wine" (John 2:10). Good wine is old wine. So Jesus changed water not into a liquid that immediately became wine, but a liquid that had become wine long before. When a man is converted, not only are his present and future transformed, but also his past. He is changed into a man who has always been elect and righteous in God's eyes."
Alone with God by Richard Wurmbrand (founder of Voice of the Martyrs), p. 84, emphasis mine.