וַיְרַגֵּ֣ל בְּעַבְדְּךָ֔ אֶל־אֲדֹנִ֖י הַמֶּ֑לֶךְ וַאדֹנִ֤י הַמֶּ֙לֶךְ֙ כְּמַלְאַ֣ךְ הָאֱלֹהִ֔ים וַעֲשֵׂ֥ה הַטּ֖וֹב בְּעֵינֶֽיךָ׃
און ער האָט אָנגערעדט אױף דײַן קנעכט פֿאַר מײַן האַר דעם מלך, אָבער מײַן האַר דער מלך איז אַזױ װי אַ מלאך פֿון גאָט; דרום טו װאָס איז גוט אין דײַנע אױגן.
Sifrei Devarim
R. Akiva says: "doing" (i.e., an action) is mentioned in respect to head, and "doing" is mentioned in respect to nails. Just as the "doing" in respect to head (i.e., shaving) makes her unsightly, so, the "doing" in respect to nails (must be something that) makes her unsightly (viz., letting them grow long.) A proof for this: (II Samuel 19:25) "And Mefibosheth the son of Saul came down towards the king. He had not done his feet and he had not done (i.e., trimmed) his mustache."