23 “The woman says unto Him, Sir, I see that you are a prophet.” The husband begins to come, he is not yet fully come. She accounted the Lord a prophet, and a prophet indeed He was; for it was of Himself He said, that “a prophet is not without honor, save in his own country.” Again, of Him it was said to Moses, “A Prophet will I raise up to them of their brethren, like you.” Like, namely, as to the form of the flesh, but not in the eminence of His majesty. Accordingly we find the Lord Jesus called a Prophet.
Hence this woman is now not far wrong. “I see,” she says, “that you are a prophet.” She begins to call the husband, and to shut out the paramour; she begins to ask about a matter that is wont to disquiet her. For there was a contention between the Samaritans and the Jews, because the Jews worshipped God in the temple built by Solomon; but the Samaritans, being situated at a distance from it, did not worship there. For this reason the Jews, because they worshipped God in the temple, boasted themselves to be better than the Samaritans.
“For the Jews have no dealings with the Samaritans:” because the latter said to them, How is it you boast and account yourselves to be better than we, just because you have a temple which we have not? Did our fathers, who were pleasing to God, worship in that temple? Was it not in this mountain where we are they worshipped? We then do better, say they, who pray to God in this mountain, where our fathers prayed. Both peoples contended in ignorance, because they had not the husband: they were inflated against each other, on the one side in behalf of the temple, on the other in behalf of the mountain.
Source: Tractates on the Gospel of John (New Advent)