וַיִּבְחַר־ל֨וֹ שָׁא֜וּל שְׁלֹ֣שֶׁת אֲלָפִים֮ מִיִּשְׂרָאֵל֒ וַיִּהְי֨וּ עִם־שָׁא֜וּל אַלְפַּ֗יִם בְּמִכְמָשׂ֙ וּבְהַ֣ר בֵּֽית־אֵ֔ל וְאֶ֗לֶף הָיוּ֙ עִם־י֣וֹנָתָ֔ן בְּגִבְעַ֖ת בִּנְיָמִ֑ין וְיֶ֣תֶר הָעָ֔ם שִׁלַּ֖ח אִ֥ישׁ לְאֹהָלָֽיו׃
And Saul chose him three thousand men of Israel; whereof two thousand were with Saul in Michmas and in the mount of Beth-el, and a thousand were with Jonathan in Gibeath-benjamin; and the rest of the people he sent every man to his tent.
English Explanation of Mishnah Menachot
And which is the choicest? That from Michmas and Zanoha are “alpha” for the quality of their fine flour; second to them is Hafaraim in the valley. The best grain is grown in two places. Michmas, which is in the territory of Benjamin (I Samuel 13:2) and Zanoha, which is in Judah (see Joshua 15:34). These places are “alpha” the first letter in the Greek alphabet, which means that they are numero uno when it comes to grain. Next best is grain that comes from Hafaraim which is in the territory of Issachar (see Joshua 19:19).
Rashi
To the captain of the thousand. I say 'to the captain of that thousand to which his brothers belong,' for all the tribes had captains of thousands according to their thousands. But I have heard, that 'to the captain of the thousand' refers to Yonoson, concerning whom [Scripture] stated, 'And a thousand were with Yonoson in Givas Binyomin'.10Above 13:2.