That concept of a future messiah was only developed in later times, after the Old Testament. There are several “messiahs” in the Old Testament, to be sure, but they are not divine figures of the end of time. They are the kings, priests, and prophets of ancient Israel. And yet, when Andrew tells his brother Simon Peter, “We have found the Messiah,” or when the Samaritan woman declares, “I know that the Messiah is coming,” they are not referring to an earthly king, priest, or prophet. They are expressing the hope for a future redeemer figure, the messiah of the end time.