וַיְהִ֕י כְּב֥וֹא דָוִ֖ד מַחֲנָ֑יְמָה וְשֹׁבִ֨י בֶן־נָחָ֜שׁ מֵרַבַּ֣ת בְּנֵֽי־עַמּ֗וֹן וּמָכִ֤יר בֶּן־עַמִּיאֵל֙ מִלֹּ֣א דְבָ֔ר וּבַרְזִלַּ֥י הַגִּלְעָדִ֖י מֵרֹגְלִֽים׃
And it came to pass, when David was come to Mahanaim, that Shobi the son of Nahash of Rabbah of the children of Ammon, and Machir the son of Ammiel of Lo-debar, and Barzillai the Gileadite of Rogelim,
Read midrashic interpretation of II Samuel 17:27: and classical rabbinic exegesis.