Armed for Prayer

Torah sets out examples of when we should take up arms.

(יד) וַיִּשְׁמַ֣ע אַבְרָ֔ם כִּ֥י נִשְׁבָּ֖ה אָחִ֑יו וַיָּ֨רֶק אֶת־חֲנִיכָ֜יו יְלִידֵ֣י בֵית֗וֹ שְׁמֹנָ֤ה עָשָׂר֙ וּשְׁלֹ֣שׁ מֵא֔וֹת וַיִּרְדֹּ֖ף עַד־דָּֽן׃

(14) When Abram heard that his kinsman had been taken captive, he mustered his retainers, born into his household, numbering three hundred and eighteen, and went in pursuit as far as Dan.

(יח) וַיַּסֵּ֨ב אֱלֹקִ֧ים ׀ אֶת־הָעָ֛ם דֶּ֥רֶךְ הַמִּדְבָּ֖ר יַם־ס֑וּף וַחֲמֻשִׁ֛ים עָל֥וּ בְנֵי־יִשְׂרָאֵ֖ל מֵאֶ֥רֶץ מִצְרָֽיִם׃

(18) So God led the people roundabout, by way of the wilderness at the Sea of Reeds. Now the Israelites went up armed out of the land of Egypt.
(טז) לֹא־תֵלֵ֤ךְ רָכִיל֙ בְּעַמֶּ֔יךָ לֹ֥א תַעֲמֹ֖ד עַל־דַּ֣ם רֵעֶ֑ךָ אֲנִ֖י יי׃
(16) Do not deal basely with your countrymen. Do not profit by the blood of your fellow: I am the LORD.
(י) וַיְהִ֣י ׀ מִן־הַיּ֣וֹם הַה֗וּא חֲצִ֣י נְעָרַי֮ עֹשִׂ֣ים בַּמְּלָאכָה֒ וְחֶצְיָ֗ם מַחֲזִיקִים֙ וְהָרְמָחִ֣ים הַמָּגִנִּ֔ים וְהַקְּשָׁת֖וֹת וְהַשִּׁרְיֹנִ֑ים וְהַ֨שָּׂרִ֔ים אַחֲרֵ֖י כָּל־בֵּ֥ית יְהוּדָֽה׃ (יא) הַבּוֹנִ֧ים בַּחוֹמָ֛ה וְהַנֹּשְׂאִ֥ים בַּסֶּ֖בֶל עֹמְשִׂ֑ים בְּאַחַ֤ת יָדוֹ֙ עֹשֶׂ֣ה בַמְּלָאכָ֔ה וְאַחַ֖ת מַחֲזֶ֥קֶת הַשָּֽׁלַח׃ (יב) וְהַ֨בּוֹנִ֔ים אִ֥ישׁ חַרְבּ֛וֹ אֲסוּרִ֥ים עַל־מָתְנָ֖יו וּבוֹנִ֑ים וְהַתּוֹקֵ֥עַ בַּשּׁוֹפָ֖ר אֶצְלִֽי׃
(10) From that day on, half my servants did work and half held lances and shields, bows and armor. And the officers stood behind the whole house of Judah (11) who were rebuilding the wall. The basket-carriers were burdened, doing work with one hand while the other held a weapon. (12) As for the builders, each had his sword girded at his side as he was building. The trumpeter stood beside me.

Can we bear arms on Shabbat?

מתני׳ ואלו הן שמצילין אותן בנפשן הרודף אחר חבירו להרגו ואחר הזכר ואחר הנערה המאורסה אבל הרודף אחר בהמה והמחלל את השבת ועובד עבודת כוכבים אין מצילין אותן בנפשן:

גמ׳ ת"ר מניין לרודף אחר חבירו להרגו שניתן להצילו בנפשו ת"ל (ויקרא יט, טז) לא תעמוד על דם רעך והא להכי הוא דאתא האי מיבעי ליה לכדתניא מניין לרואה את חבירו שהוא טובע בנהר או חיה גוררתו או לסטין באין עליו שהוא חייב להצילו ת"ל לא תעמוד על דם רעך אין ה"נ

MISHNA: And these are the ones who are saved from transgressing even at the cost of their lives; that is to say, these people may be killed so that they do not perform a transgression: One who pursues another to kill him, or pursues a male to sodomize him, or pursues a betrothed young woman to rape her. But with regard to one who pursues an animal to sodomize it, or one who seeks to desecrate Shabbat, or one who is going to engage in idol worship, they are not saved at the cost of their lives...

GEMARA: The Sages taught in a baraita: From where is it derived that with regard to one who pursues another in order to kill him, the pursued party may be saved at the cost of the pursuer’s life? The verse states: “You shall not stand idly by the blood of another” (Leviticus 19:16); rather, you must save him from death. The Gemara asks: But does this verse really come to teach us this? This verse is required for that which is taught in a baraita: From where is it derived that one who sees another drowning in a river, or being dragged away by a wild animal, or being attacked by bandits [listin], is obligated to save him? The Torah states: “You shall not stand idly by the blood of another.” The Gemara answers: Yes, it is indeed so that this verse relates to the obligation to save one whose life is in danger.

מַתְנִי׳ לֹא יֵצֵא הָאִישׁ לֹא בְּסַיִיף וְלֹא בְּקֶשֶׁת וְלֹא בִּתְרִיס וְלֹא בְּאַלָּה וְלֹא בְּרוֹמַח. וְאִם יָצָא — חַיָּיב חַטָּאת. רַבִּי אֱלִיעֶזֶר אוֹמֵר: תַּכְשִׁיטִין הֵן לוֹ. וַחֲכָמִים אוֹמְרִים: אֵינָן אֶלָּא לִגְנַאי, שֶׁנֶּאֱמַר: ״וְכִתְּתוּ חַרְבוֹתָם לְאִתִּים וַחֲנִיתוֹתֵיהֶם לְמַזְמֵרוֹת וְלֹא יִשָּׂא גוֹי אֶל גּוֹי חֶרֶב וְלֹא יִלְמְדוּ עוֹד מִלְחָמָה״.
MISHNA: Just as it is prohibited for a woman to carry out certain items unique to a woman into the public domain, the Sages said that a man may neither go out on Shabbat with a sword, nor with a bow, nor with a shield [teris], nor with an alla, nor with a spear. And if he unwittingly went out with one of these weapons to the public domain he is liable to bring a sin-offering. Rabbi Eliezer says: These weapons are ornaments for him; just as a man is permitted to go out into the public domain with other ornaments, he is permitted to go out with weapons. And the Rabbis say: They are nothing other than reprehensible and in the future they will be eliminated, as it is written: “And they shall beat their swords into plowshares and their spears into pruning hooks; nation will not raise sword against nation, neither will they learn war anymore” (Isaiah 2:4).

(ו) מותר ליכנס בב"ה במקלו ובתרמילו ובאפונדתו (פי' מיני כיסים תרגום ובילקוט ובתרמילו) ויש אוסרים ליכנס בו בסכין ארוך או בראש מגולה:

(6) It's permitted to enter the synagogue with one's staff or satchel or backpack (meaning, purses - the Targum has backpack to be briefcase). Some forbid entering with a long knife or with it's blade uncovered.

גמ׳ אמר רבא מאי טעמא דמחתרת חזקה אין אדם מעמיד עצמו על ממונו והאי מימר אמר אי אזילנא קאי לאפאי ולא שביק לי ואי קאי לאפאי קטילנא ליה והתורה אמרה אם בא להורגך השכם להורגו

GEMARA: Rava says: What is the reason for this halakha concerning a burglar who breaks into a house? He explains: There is a presumption that a person does not restrain himself when faced with losing his money, and therefore this burglar must have said to himself: If I go in and the owner sees me, he will rise against me and not allow me to steal from him, and if he rises against me, I will kill him. And the Torah stated a principle: If someone comes to kill you, rise and kill him first.

Do we feel safe returning to synagogues?

אָמַר רַב חִיָּיא בַּר אָשֵׁי אָמַר רַב: כֹּל שֶׁאֵין דַּעְתּוֹ מְיוּשֶּׁבֶת עָלָיו אַל יִתְפַּלֵּל, מִשּׁוּם שֶׁנֶּאֱמַר: ״בְּצָר אַל יוֹרֶה״. רַבִּי חֲנִינָא בְּיוֹמָא דְּרָתַח לָא מְצַלֵּי, אָמַר: ״בְּצָר אַל יוֹרֶה״ כְּתִיב. מָר עוּקְבָא בְּיוֹמָא דְשׁוּתָא לָא הֲוָה נָפֵיק לְבֵי דִינָא.

Rav Ḥiyya bar Ashi said that Rav said: Anyone whose mind is unsettled should not pray, as it is stated: When distressed, one should not issue decisions. The Gemara relates that Rabbi Ḥanina, on a day that he was angry, would not pray, as he said that it is written: When distressed, one should not issue decisions. The Gemara similarly relates that Mar Ukva, on a day of a south wind, would not venture out to the court, for this hot and harsh wind would disturb his usual clarity of mind.

Is there a safety limitation with regard to the times we extend ourselves to the stranger, the hungry, etc.?

אֵין פּוֹחֲתִין לֶעָנִי הָעוֹבֵר מִמָּקוֹם לְמָקוֹם מִכִּכָּר בְּפוּנְדְיוֹן, מֵאַרְבַּע סְאִין בְּסֶלַע. לָן, נוֹתְנִין לוֹ פַּרְנָסַת לִינָה. שָׁבַת, נוֹתְנִין לוֹ מְזוֹן שָׁלשׁ סְעֻדּוֹת. מִי שֶׁיֶּשׁ לוֹ מְזוֹן שְׁתֵּי סְעֻדּוֹת, לֹא יִטֹּל מִן הַתַּמְחוּי. מְזוֹן אַרְבַּע עֶשְׂרֵה סְעֻדּוֹת, לֹא יִטֹּל מִן הַקֻּפָּה. וְהַקֻּפָּה נִגְבֵּית בִּשְׁנַיִם, וּמִתְחַלֶּקֶת בִּשְׁלשָׁה:
They may not give a poor person wandering from place to place less than a loaf worth a pundion at a time when four seahs [of wheat cost] one sela. If he spends the night [at a place], they must give him the cost of what he needs for the night. If he stays over Shabbat they must give him enough food for three meals. He who has the money for two meals, he may not take anything from the charity dish. And if he has enough money for fourteen meals, he may not take any support from the communal fund. The communal fund is collected by two and distributed by three people.

...בגמילות חסדים כתיב (משלי כא, כא) רודף צדקה וחסד ימצא חיים צדקה וכבוד ובהבאת שלום כתיב (תהלים לד, טו) בקש שלום ורדפהו וא"ר אבהו אתיא רדיפה רדיפה כתיב הכא בקש שלום ורדפהו וכתיב התם רודף צדקה וחסד

... With regard to acts of loving kindness it is written: “He who pursues righteousness and kindness shall find life, prosperity, and honor” (Proverbs 21:21), all of which apply in this world. And with regard to bringing peace it is written: “Seek peace and pursue it” (Psalms 34:15). And Rabbi Abbahu says: This is derived through a verbal analogy between the term pursuing written with regard to pursuing peace and the term pursuing written in another verse. It is written here: “Seek peace and pursue it,” and it is written there, with regard to acts of kindness: “Pursues righteousness and kindness.” This teaches that one who pursues peace will also merit life, prosperity, and honor.