וּבִימֵ֣י אַרְתַּחְשַׁ֗שְׂתָּא כָּתַ֨ב בִּשְׁלָ֜ם מִתְרְדָ֤ת טָֽבְאֵל֙ וּשְׁאָ֣ר כנותו [כְּנָוֺתָ֔יו] עַל־ארתחששתא [אַרְתַּחְשַׁ֖שְׂתְּ] מֶ֣לֶךְ פָּרָ֑ס וּכְתָב֙ הַֽנִּשְׁתְּוָ֔ן כָּת֥וּב אֲרָמִ֖ית וּמְתֻרְגָּ֥ם אֲרָמִֽית׃ (פ)
Também nos dias de Artaxerxes escreveram Bislão, Mitredate, Tabeel, e os companheiros destes, a Artaxerxes, rei da Pérsia; e a carta foi escrita em caracteres aramaicos, e traduzida na língua aramaica.
Rashi on Ezra
And in the days of Artaxerxes He is Cyrus, the king of Persia. The numerical value of the letters of כּרֶשּׁ equal the numerical value of the letters of דָּרְיָוֶשּׁ: [כ = 20; ר = 200; שּׁ = 300; total = 520. ד = 4; ר = 200; י = 10; 520 ו = 6; שּׁ = 300; total = 520.] And so we learned in Tractate Rosh Hashanah (3b): “The same one is Cyrus, who is Darius, who is Artaxerxes.” [He was called Cyrus כּרֶשּׁ because he was a worthy (כָּשֵּׁר) king; Artaxerxes, because of the kingdom, and in Seder Olam (ch. 30): “Darius was Artaxerxes (אַרְתַּחְשַּׁשְּׁתָּא), and the entire kingdom was called Artaxerxes, etc.” [meaning that all the kings were called Artaxerxes].
Rashi on Ezra
wrote with peace wrote his letter with words of peace.
Rashi on Ezra
Mithredath Tabeel This is the name of a man, one of the adversaries of Judah and Benjamin.