וּצְבָא֖וֹ וּפְקֻדָ֑יו שִׁשָּׁ֧ה וְאַרְבָּעִ֛ים אֶ֖לֶף וַחֲמֵ֥שׁ מֵאֽוֹת׃
그 군대는 계수함을 입은 자 사만 육천오백 명이며
Chizkuni
ויסגור בשר; until the creation of woman the letter ס had not appeared in the Torah; this is to teach us that Satan had not found an entrance into the world until woman had been created. A different exegesis: the appearance of the letter ס is to remind us that a wife is always close to her husband. Concerning the query raised in Bereshit Rabbah that the letter ס had already appeared in the word: הסובב in verse 11 of our chapter, we must answer that the subjects in that verse are two rivers, not a human being.