The woman tells Jesus, 'I know that Messiah cometh,' and expects the coming figure to explain all things. Jesus answers directly, 'I that speak unto thee am he.'
Her expectation arises within a Samaritan scriptural world centered especially on the Torah.
Samaritan expectation is often associated with the Taheb, a coming restorer linked to the promise of a prophet like Moses in Deuteronomy 18. The precise development and terminology of Samaritan messianic expectations across periods must be handled cautiously, but the woman's words clearly anticipate an authoritative coming revealer.
John translates and frames the expectation using Messiah/Christ language familiar to his readers.
The background explains why revelation is central to the woman's hope: the coming figure will settle disputed matters and make God's will known.
Jesus does not merely offer another opinion about Gerizim and Jerusalem. He identifies himself as the awaited one, making the conversation one of John's unusually direct disclosures of Jesus' messianic identity.