וַיְרַגֵּ֣ל בְּעַבְדְּךָ֔ אֶל־אֲדֹנִ֖י הַמֶּ֑לֶךְ וַאדֹנִ֤י הַמֶּ֙לֶךְ֙ כְּמַלְאַ֣ךְ הָאֱלֹהִ֔ים וַעֲשֵׂ֥ה הַטּ֖וֹב בְּעֵינֶֽיךָ׃
他還在我主我王面前誣陷僕人。但我主我王如同上帝的天使一般；所以你看怎樣好，就怎樣做吧。
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."