Does the present tense of “I know not a man” (Luke 1:34) — a Semitic participle of permanent condition

Type: supporting argument (off-timeline) · Assessment: weak as a proof of a vow — the grammatical datum is genuinely real (the Greek present “I know not” is unusual against the Old Testament’s aorist/perfect virginity idiom, and the Hebrew/Aramaic active participle behind it carries a durative, open-ended sense), but it does not bear the lifelong-vow weight the apologists load on it: the strongest philological witness they cite, Manuel Miguéns, expressly declines to draw a vow from it, concluding only that Mary was, and would remain, a virgin through the (virginal) conception. It corroborates at most the settled-resolve steelman of the companion vow argument, not a vow.

The claim

A grammatical argument, widely copied across popular apologetics, is drawn from the exact form of Mary’s verb in Luke 1:34 — “How shall this be, seeing I know not a man?” The Greek is ándra ou ginóskō (“a man I do not know”), a present indicative; the argument holds that this present tense expresses not a passing fact (“I have not known a man”) but a continuous, settled disposition — and that it renders a Hebrew or Aramaic active participle, yodaat (“knowing”), which names a lasting or permanent condition. The reconstructed underlay offered is ki enneni yodaat ish. As Warren Carroll states it, quoting Manuel Miguéns:

— Warren H. Carroll, The Founding of Christendom I:310, calling Miguéns’ analysis “indispensable.”¹ The conclusion drawn is that Mary is voicing a permanent resolve not to know man — that is, a vow of lifelong virginity — so that the grammar of the single verb is made to carry the whole Marian doctrine.

Who advances it

The argument descends from a scholarly source that is more careful than its popular form. Its philological substance is Manuel Miguéns, O.F.M., The Virgin Birth: An Evaluation of Scriptural Evidence (1981), 77–82; from there it passes through Warren Carroll’s widely-read The Founding of Christendom (1985), which quotes and praises Miguéns, and thence into a stream of copy-pasted apologetics (the Theotokos and Catholic Strength weblogs, Reddit threads, and popular tracts), where the yodaat / “permanent condition” line is repeated almost verbatim.² A related durative reading is offered by the Mariologist René Laurentin, who glosses the present “I do not know” as a standing condition — like “I do not smoke,” a habitual disposition rather than a report of the moment. In this form the grammar is presented as clinching the vow reading of Luke 1:34: the verb itself is said to prove the resolve.

The evidence for

The grammatical datum is real. Two observations in the argument are sound and worth stating at their strongest. First, the present tense is striking. The Old Testament’s standing idiom for virginity — “a woman who has not known a man” — regularly uses a completed (perfect/aorist) form: Lot’s daughters “which have not known man” (Genesis 19:8), the women-children “that have not known a man by lying with him” (Numbers 31:18), Jephthah’s daughter who “knew no man” (Judges 11:39), the four hundred virgins “that had known no man” (Judges 21:12). Against that pattern Luke’s present ginóskō stands out. Second, the underlying Hebrew active participle (yoda‘at ish, “knowing a man,” the very phrase of Numbers 31:17 and Judges 21:11) does express a lasting, open-ended state, not a single past act — it “stresses not only the present time but also, very often, the near future or even the future in general,” as Miguéns puts it. So the argument’s core linguistic claim — that Mary’s words describe a durable condition of virginity, reaching forward and not merely backward — is defensible.³

Adversarial assessment

What holds. The grammatical observation itself is sound, and it is a genuine philological gain over a flat-footed “she merely states her present status.” The present tense against the aorist idiom is a real feature of the text; the participle it renders does carry a durative, forward-leaning force. To that extent the verse says more than “I happen to be a virgin now”: it says something about a settled and continuing virginity. That much the steelman of the vow argument — a settled resolve of virginity that Mary’s question presupposes — can legitimately draw on.

What is overstated. The apologetic chain silently upgrades “durable / open-ended” into “permanent / lifelong / a vow,” and the upgrade is exactly what the grammar will not license. The decisive point is that the argument’s own authority refuses it. Having laid out all the data the copy-paste rests on — the striking present, the participle, the reach into the near future — Miguéns himself draws a deliberately narrower conclusion:

— Miguéns, The Virgin Birth, 81.³ On his own reasoning the “near future” the participle reaches is the moment of the (virginal) conception — that Mary was a virgin then, and would still be one when she conceived — not the whole of her life. The word “permanent” in the popular version, and the leap to “a vow,” are precisely the inferences Miguéns declines to make. The chain Miguéns → Carroll → tract quietly converts “a virgin for the near future” into “a permanent condition of virginity,” and a philological observation into a proof of lifelong continence.

Two further checks tell the same way. First, a present-tense statement of a present condition is in any case the natural way for a betrothed virgin to answer — “I am (as things stand) without relations with a man” — and the durative sense reaches, at its strongest, only the imminent conception, which the rival readings of the verse already accommodate without any vow: astonishment at conceiving virginally then and there (Cajetan), or Mary hearing herself named the virgin almah of Isaiah 7:14. Second, the fathers who held the perpetual virginity did not rest it on the grammar of the verb “know.” Basil of Caesarea, affirming the doctrine firmly, expressly declined to make it turn on the grammar of “know” in Matthew 1:25, resting it instead on the mind of the Church — a patristic caution against building the doctrine on ginóskō, whether the “until” of Matthew or the present of Luke.⁴

Assessment

Weak — as a proof of a vow, which is the interpretation it is marshaled to serve. Keep the two questions apart. Is the grammatical datum sound? Largely yes: the present tense is unusual against the Old Testament idiom, and the participle behind it does carry a durative, forward-leaning sense — the argument’s linguistic core is defensible, and it is a real gain over reading the clause as a bare statement of present fact. Does it establish a lifelong vow? No. On the reasoning of the very scholar the apologists cite as “indispensable,” the grammar shows only that Mary was a virgin at the Annunciation and would be one at the conception; Miguéns explicitly sets the vow question aside. The popular form reaches its conclusion by replacing “near future” with “permanent” — an upgrade the sources do not support. As philology the observation is fine and modestly useful; as a proof of a vow it does not hold, corroborating at most the settled-resolve steelman of the companion argument, itself rated contested. The misattribution of Miguéns — citing a scholar for a stronger claim than he makes — should be flagged wherever a proponent’s page repeats it.

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