Positive Commandment 13 (Digest)
The Arm Tefillin
"And you shall bind them for a sign upon your arm"—Deuteronomy 6:8.
Men are obligated to wrap tefillin on their arms.
Unabridged English Text of this Mitzvah »
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> The 13th mitzvah is that we are commanded in the actions;) involving the tefillin worn on the arm.
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> The source of this commandment is G‑d's statement (exalted be He), "And you shall bind them for a sign upon your hand.";)
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> This mitzvah is also repeated in the Torah four times.;)
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> The proof that the tefillin of the head and of the hand count as two separate mitzvos is from the tractate Menachos.;) In this passage, the Sages expressed surprise at the one who proposed that one may not wear the tefillin of the head and of the hand independently unless both of them are available.;) The exact quote is, "One who doesn't have two mitzvos, shouldn't do one mitzvah?!"
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> The meaning of this statement: A person that does not have the possibility of performing two mitzvos shouldn't perform at least one mitzvah?! Certainly not — he should perform the mitzvah available to him, and therefore don whichever of them [i.e., tefillin of the head or of the hand] is available.
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> We see from this passage that tefillin of the hand and of the head are called "two mitzvos."
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> Women are not obligated in these two mitzvos [of tefillin]. This exemption can be seen from G‑d's statement (exalted be He) stating the reason for this obligation [of wearing tefillin], "In order that G‑d's Torah be in your mouth";) — and women are not obligated in Torah study. This is the Mechilta's explanation.
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> All the details of these two mitzvos have been explained in the 4th chapter of Menachos.;)
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> Footnotes
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> 1.
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> In addition to actually tying the tefillin on the hand , the writing of the tefillin, forming the boxes, etc., are also included in the mitzvah. See Kapach etc., 5731, note 56. P'er Hamelech, p. 47
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> 2.
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> Deut. 6:8.
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> 3.
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> Ex. 13:9; 13:16; Deut. 6:8; 11:18.
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> 4.
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> 44a.
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> 5.
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> I.e., only when the person has both tefillin (head and hand) is he allowed to wear one of them without the other. However, should he have only one of them, even that one may not be worn. The Gemara explains this Sage's rationale: if we allow such a person to wear the one type of tefillin which he has, perhaps he will be lax and never acquire the second type of tefillin. However, if the person has both tefillin available to him, we have no such suspicion. See Menachos 44a. Rashi, ibid. Kapach, 5731 ed. note 60, regarding the previous erroneous translation from the Arabic.
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> 6.
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> Ex. 13:9.
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> 7.
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> 31b. In our versions of the Gemara, this is the third chapter. See Kapach, 5731, note 64.