Matthew 1:21-23 cites Isaiah 7:14 ('the virgin shall conceive') as fulfilled in Jesus's virgin birth, but the Hebrew word Isaiah actually uses, almah, means simply 'young woman,' not 'virgin' — Hebrew has a specific word for virgin, betulah, which Isaiah himself uses elsewhere (47:1) but pointedly not in 7:14. The Septuagint's rendering of almah as parthenos ('virgin') was a mistranslation Matthew then relied on. Moreover, the Hebrew grammar ('ha-almah,' 'the young woman,' with definite article) points to a specific woman known to Ahaz in the immediate 8th-century crisis, not a virgin conceiving 700 years later — the prophecy is a near-term reassurance sign to Ahaz about the Syro-Ephraimite war, with nothing to do with a future messiah.

The linguistic point deserves an honest concession: almah's basic lexical sense is 'young woman of marriageable/childbearing age,' and betulah is the more specific/technical Hebrew term regularly glossed 'virgin,' used by Isaiah himself at 47:1. This much is correct and should not be minimized. But several further facts complicate the objection's confident conclusion. First, examine every occurrence of almah in the Hebrew Bible where the woman's status is discernible from context — Rebekah (Gen 24:43), Miriam (Exod 2:8), the maidens of Song of Songs (1:3; 6:8, where almah is explicitly distinguished from queens and concubines), Ps 68:25, Prov 30:19 — in not a single instance is almah used of a married or sexually experienced woman. The word's actual usage pattern in the biblical corpus is consistently 'unmarried young woman,' for whom virginity would be the culturally assumed status; the LXX translators (working in the 3rd-2nd century BC, well before Christianity existed, so with no messianic-Christian motive) rendering almah as parthenos was therefore a defensible, contextually informed translation choice, not an 'erroneous' one invented to serve a later doctrine. Second, betulah itself is not an unambiguous technical term either — Joel 1:8 uses betulah of a woman mourning 'the husband of her youth,' showing that betulah alone, without qualifying language, does not automatically guarantee virginity any more cleanly than almah guarantees its absence; the neat semantic opposition the objection draws between the two words is overdrawn (a point made on comparative Semitic grounds by scholars such as Cyrus Gordon and discussed by Walter Kaiser). Third, on the historical-context point: it should be conceded that Isaiah 7:14-16, in its immediate 8th-century setting, functions primarily as a near-term sign to Ahaz regarding the Syro-Ephraimite crisis — most likely fulfilled in a child born within Isaiah's own generation (commonly identified with Isaiah's son in ch. 8, or less commonly Hezekiah). Matthew is not claiming this near-term referent did not exist or that Isaiah's ONLY audience was a future Messiah 700 years off. Rather, Matthew is employing a recognized Second Temple Jewish exegetical technique — often called sensus plenior or double/typological fulfillment — in which a text's historical, near fulfillment functions as a pattern that finds a fuller, ultimate fulfillment later. This reading strategy is not a Christian invention: the Qumran pesher method (e.g., 1QpHab, the Habakkuk Pesher) demonstrates that reading prophetic texts as having a near horizon and a further eschatological horizon simultaneously was a live, respected Jewish hermeneutical mode in exactly this era. Walter Kaiser has written extensively defending double-fulfillment prophecy as a coherent category (distinct from either pure single-referent literalism or arbitrary allegory), and John Oswalt's NICOT commentary on Isaiah treats the 7:14 crux carefully and at length, honestly presenting the near-context reading while defending the legitimacy of Matthew's further application.

The child's very name, 'Immanuel' ('God with us'), already carries theological weight beyond a bare court announcement, and Isaiah's own 'Book of Immanuel' (chs. 7-11) escalates the child motif across the unit: by 9:6-7 the child-king is given titles including 'Mighty God' and an everlasting Davidic throne, and by 11:1-10 he is the Spirit-endowed Branch who judges with perfect righteousness and inaugurates cosmic peace. Read compositionally, as ancient readers characteristically read prophetic collections (holistically, not atomistically verse-by-verse), Isaiah 7:14 is the first installment of a messianic child motif that Isaiah himself develops into explicitly divine, everlasting, Davidic proportions — making Matthew's christological reading a natural continuation of Isaiah's own trajectory, not an imposition on it.