Central Jewish Origin Story: Deuteronomy 26:5-10
(ה) וְעָנִ֨יתָ וְאָמַרְתָּ֜ לִפְנֵ֣י ׀ יְהוָ֣ה אֱלֹהֶ֗יךָ אֲרַמִּי֙ אֹבֵ֣ד אָבִ֔י וַיֵּ֣רֶד מִצְרַ֔יְמָה וַיָּ֥גָר שָׁ֖ם בִּמְתֵ֣י מְעָ֑ט וַֽיְהִי־שָׁ֕ם לְג֥וֹי גָּד֖וֹל עָצ֥וּם וָרָֽב׃ (ו) וַיָּרֵ֧עוּ אֹתָ֛נוּ הַמִּצְרִ֖ים וַיְעַנּ֑וּנוּ וַיִּתְּנ֥וּ עָלֵ֖ינוּ עֲבֹדָ֥ה קָשָֽׁה׃ (ז) וַנִּצְעַ֕ק אֶל־יְהוָ֖ה אֱלֹהֵ֣י אֲבֹתֵ֑ינוּ וַיִּשְׁמַ֤ע יְהוָה֙ אֶת־קֹלֵ֔נוּ וַיַּ֧רְא אֶת־עָנְיֵ֛נוּ וְאֶת־עֲמָלֵ֖נוּ וְאֶת־לַחֲצֵֽנוּ׃ (ח) וַיּוֹצִאֵ֤נוּ יְהוָה֙ מִמִּצְרַ֔יִם בְּיָ֤ד חֲזָקָה֙ וּבִזְרֹ֣עַ נְטוּיָ֔ה וּבְמֹרָ֖א גָּדֹ֑ל וּבְאֹת֖וֹת וּבְמֹפְתִֽים׃
(5) You shall then recite as follows before the LORD your God: “My father was a fugitive Aramean. He went down to Egypt with meager numbers and sojourned there; but there he became a great and very populous nation. (6) The Egyptians dealt harshly with us and oppressed us; they imposed heavy labor upon us. (7) We cried to the LORD, the God of our fathers, and the LORD heard our plea and saw our plight, our misery, and our oppression. (8) The LORD freed us from Egypt by a mighty hand, by an outstretched arm and awesome power, and by signs and portents.
(ט) וַיְבִאֵ֖נוּ אֶל־הַמָּק֣וֹם הַזֶּ֑ה וַיִּתֶּן־לָ֙נוּ֙ אֶת־הָאָ֣רֶץ הַזֹּ֔את אֶ֛רֶץ זָבַ֥ת חָלָ֖ב וּדְבָֽשׁ׃ (י) וְעַתָּ֗ה הִנֵּ֤ה הֵבֵ֙אתִי֙ אֶת־רֵאשִׁית֙ פְּרִ֣י הָאֲדָמָ֔ה אֲשֶׁר־נָתַ֥תָּה לִּ֖י יְהוָ֑ה וְהִנַּחְתּ֗וֹ לִפְנֵי֙ יְהוָ֣ה אֱלֹהֶ֔יךָ וְהִֽשְׁתַּחֲוִ֔יתָ לִפְנֵ֖י יְהוָ֥ה אֱלֹהֶֽיךָ׃
(9) He brought us to this place and gave us this land, a land flowing with milk and honey. (10) Wherefore I now bring the first fruits of the soil which You, O LORD, have given me.” You shall leave it before the LORD your God and bow low before the LORD your God.
תנא דבי ר' ישמעאל למה נקרא שמן קשואים מפני שהן קשים לגוף כחרבות איני והכתיב (בראשית כה, כג) ויאמר ה' לה שני גוים בבטנך אל תקרי גוים אלא גיים וא"ר יהודה אמר רב אלו אנטונינוס ורבי שלא פסק משלחנם לא צנון ולא חזרת ולא קשואין לא בימות החמה ולא בימות הגשמים
It was taught in the school of Rabbi Yishmael: Why are they called cucumbers [kishu’im]? Because they are as harmful [kashim] to the body as swords. The Gemara asks: Is that really so? Is it not written: “And the Lord said unto her: Two nations [goyim] are in your womb” (Genesis 25:23) and the Gemara says: Do not read it as goyim, rather read it as gayim, proud ones. And Rav Yehuda said that Rav said: This verse was fulfilled in these two great individuals who descended from Rebecca: Antoninus and Rabbi Yehuda HaNasi, whose tables, because of their wealth, never lacked for radish, lettuce or cucumbers, neither in summer nor in the rainy season. Apparently, cucumbers are good and are even a delicacy of kings.