(ח) כִּ֤י תִבְנֶה֙ בַּ֣יִת חָדָ֔שׁ וְעָשִׂ֥יתָ מַעֲקֶ֖ה לְגַגֶּ֑ךָ וְלֹֽא־תָשִׂ֤ים דָּמִים֙ בְּבֵיתֶ֔ךָ כִּֽי־יִפֹּ֥ל הַנֹּפֵ֖ל מִמֶּֽנּוּ׃
(8) When you build a new house, you shall make a parapet for your roof, so that you do not bring bloodguilt on your house if anyone should fall from it.

Kyrenia Castle, Cyprus. Photo from Wikipedia.
(א) מִצְוַת עֲשֵׂה לַעֲשׂוֹת אָדָם מַעֲקֶה לְגַגּוֹ שֶׁנֶּאֱמַר (דברים כב ח) "וְעָשִׂיתָ מַעֲקֶה לְגַגֶּךָ".(ג) גֹּבַהּ הַמַּעֲקֶה אֵין פָּחוֹת מֵעֲשָׂרָה טְפָחִים כְּדֵי שֶׁלֹּא יִפּל מִמֶּנּוּ הַנּוֹפֵל. וְצָרִיךְ לִהְיוֹת הַמְחִצָּה חֲזָקָה כְּדֵי שֶׁיִּשָּׁעֵן אָדָם עָלֶיהָ וְלֹא תִּפּל. וְכָל הַמֵּנִיחַ גַּגּוֹ בְּלֹא מַעֲקֶה בִּטֵּל מִצְוַת עֲשֵׂה וְעָבַר עַל לֹא תַּעֲשֶׂה שֶׁנֶּאֱמַר (דברים כב ח) "וְלֹא תָשִׂים דָּמִים בְּבֵיתֶךָ". וְאֵין לוֹקִין עַל לָאו זֶה מִפְּנֵי שֶׁאֵין בּוֹ מַעֲשֶׂה: (ד) אֶחָד הַגַּג וְאֶחָד כָּל דָּבָר שֶׁיֵּשׁ בּוֹ סַכָּנָה וְרָאוּי שֶׁיִּכָּשֵׁל בָּהּ אָדָם וְיָמוּת. כְּגוֹן שֶׁהָיְתָה לוֹ בְּאֵר אוֹ בּוֹר בַּחֲצֵרוֹ בֵּין שֶׁיֵּשׁ בּוֹ מַיִם בֵּין שֶׁאֵין בּוֹ מַיִם חַיָּב לַעֲשׂוֹת חֻלְיָא גְּבוֹהָה עֲשָׂרָה טְפָחִים. אוֹ לַעֲשׂוֹת לָהּ כִּסּוּי כְּדֵי שֶׁלֹּא יִפּל בָּהּ אָדָם וְיָמוּת. וְכֵן כָּל מִכְשׁל שֶׁיֵּשׁ בּוֹ סַכָּנַת נְפָשׁוֹת מִצְוַת עֲשֵׂה לַהֲסִירוֹ וּלְהִשָּׁמֵר מִמֶּנּוּ וּלְהִזָּהֵר בַּדָּבָר יָפֶה יָפֶה. שֶׁנֶּאֱמַר (דברים ד ט) "הִשָּׁמֶר לְךָ וּשְׁמֹר נַפְשְׁךָ". וְאִם לֹא הֵסִיר וְהֵנִיחַ הַמִּכְשׁוֹלוֹת הַמְּבִיאִין לִידֵי סַכָּנָה בִּטֵּל מִצְוַת עֲשֵׂה וְעָבַר בְּ(דברים כב ח) "לֹא תָשִׂים דָּמִים": (ה) הַרְבֵּה דְּבָרִים אָסְרוּ חֲכָמִים מִפְּנֵי שֶׁיֵּשׁ בָּהֶם סַכָּנַת נְפָשׁוֹת. וְכָל הָעוֹבֵר עֲלֵיהֶן וְאוֹמֵר הֲרֵינִי מְסַכֵּן בְּעַצְמִי וּמַה לַּאֲחֵרִים עָלַי בְּכָךְ אוֹ אֵינִי מַקְפִּיד בְּכָךְ מַכִּין אוֹתוֹ מַכַּת מַרְדּוּת:
(1) It is a positive commandment for a man to build a guardrail for his roof, as Deuteronomy 22:8 says: "And you shall make a guardrail for your roof."(3) The height of a guardrail should not be any less than ten handbreadths, so that a person who might fall will not fall from it.
A guardrail must be a partition strong enough to enable a person to lean on it without falling.
Anyone who leaves his roof open without a guardrail negates the observance of a positive commandment and violates a negative commandment, as Deuteronomy 22:8 states: "Do not cause blood to be spilled in your home." The violation of this commandment is not punished by lashes, for it does not involve a deed.(4) This requirement applies to a roof, and similarly, to any place that might present a danger and cause a person to stumble and die. For example, if a person has a well or a cistern in his courtyard, he must erect a sand wall ten handbreadths high around them or make a cover for them, so that a person will not fall in and die.
Similarly, it is a positive mitzvah to remove any obstacle that could pose a danger to life, and to be very careful regarding these matters, as Deuteronomy 4:9 states: "Beware for yourself; and guard your soul." If a person leaves a dangerous obstacle and does not remove it, he negates the observance of a positive commandment, and violates the negative commandment: "Do not cause blood to be spilled."(5) Our Sages forbade many matters because they involve a threat to life. Whenever a person transgresses these guidelines, saying: "I will risk my life, what does this matter to others," or "I am not careful about these things," he should be punished by stripes for rebelliousness.
A guardrail must be a partition strong enough to enable a person to lean on it without falling.
Anyone who leaves his roof open without a guardrail negates the observance of a positive commandment and violates a negative commandment, as Deuteronomy 22:8 states: "Do not cause blood to be spilled in your home." The violation of this commandment is not punished by lashes, for it does not involve a deed.(4) This requirement applies to a roof, and similarly, to any place that might present a danger and cause a person to stumble and die. For example, if a person has a well or a cistern in his courtyard, he must erect a sand wall ten handbreadths high around them or make a cover for them, so that a person will not fall in and die.
Similarly, it is a positive mitzvah to remove any obstacle that could pose a danger to life, and to be very careful regarding these matters, as Deuteronomy 4:9 states: "Beware for yourself; and guard your soul." If a person leaves a dangerous obstacle and does not remove it, he negates the observance of a positive commandment, and violates the negative commandment: "Do not cause blood to be spilled."(5) Our Sages forbade many matters because they involve a threat to life. Whenever a person transgresses these guidelines, saying: "I will risk my life, what does this matter to others," or "I am not careful about these things," he should be punished by stripes for rebelliousness.
Questions
- To what degree are we responsible for the safety of others?
- Why is safety paramount?
- What do we perceive as threats to our safety, and what are our safeguards?
הַמִּתְפַּלֵּל וְרָאָה אַנָּס בָּא כְּנֶגְדּוֹ, רָאָה קָרוֹן בָּא כְּנֶגְדּוֹ — לֹא יְהֵא מַפְסִיק, אֶלָּא מְקַצֵּר וְעוֹלֶה...הָא דְּאֶפְשָׁר לְקַצֵּר (יְקַצֵּר. וְאִם לָאו — פּוֹסֵק).תָּנוּ רַבָּנַן: מַעֲשֶׂה בְּחָסִיד אֶחָד שֶׁהָיָה מִתְפַּלֵּל בַּדֶּרֶךְ. בָּא הֶגְמוֹן אֶחָד וְנָתַן לוֹ שָׁלוֹם, וְלֹא הֶחְזִיר לוֹ שָׁלוֹם. הִמְתִּין לוֹ עַד שֶׁסִּייֵּם תְּפִלָּתוֹ. לְאַחַר שֶׁסִּייֵּם תְּפִלָּתוֹ, אָמַר לוֹ: רֵיקָא, וַהֲלֹא כָּתוּב בְּתוֹרַתְכֶם ״רַק הִשָּׁמֶר לְךָ וּשְׁמֹר נַפְשְׁךָ״, וּכְתִיב ״וְנִשְׁמַרְתֶּם מְאֹד לְנַפְשֹׁתֵיכֶם״. כְּשֶׁנָּתַתִּי לְךָ שָׁלוֹם לָמָּה לֹא הֶחְזַרְתָּ לִי שָׁלוֹם? אִם הָיִיתִי חוֹתֵךְ רֹאשְׁךָ בְּסַיִיף, מִי הָיָה תּוֹבֵעַ אֶת דָּמְךָ מִיָּדִי?!
One who is praying and saw a violent person, feared by all, coming toward him, or a carriage coming toward him and he is in the way, he should not stop his prayer but rather abridge it and move out of the way...This that teaches to abridge one’s prayer rather than stopping, refers to a case where it is possible to abridge his prayer and complete it in time, in which case he should abridge it. And if it is not a situation where he can abridge his prayer, he interrupts his prayer.The Sages taught: There was a related incident, involving a particular pious man who was praying while traveling along his path when an officer [hegmon] came and greeted him. The pious man did not pause from his prayer and did not respond with a greeting. The officer waited for him until he finished his prayer. After he finished his prayer, the officer said to him: You good for nothing. You endangered yourself; I could have killed you. Isn’t it written in your Torah: “Take utmost care and guard yourself diligently” (Deuteronomy 4:9)?
And it is also written: “Take therefore good heed unto yourselves” (Deuteronomy 4:15)? Why did you ignore the danger to your life? When I greeted you, why did you not respond with a greeting? Were I to sever your head with a sword, who would hold me accountable for your spilled blood?
And it is also written: “Take therefore good heed unto yourselves” (Deuteronomy 4:15)? Why did you ignore the danger to your life? When I greeted you, why did you not respond with a greeting? Were I to sever your head with a sword, who would hold me accountable for your spilled blood?
Questions
- The Gemara elevates the need for preventive measures, but within limits. How would you extend this principle to other areas of personal safety, and what would the limits be?
