פּירוש אויף במדבר 5:3

אשר אני שכן בתוכם, "that I dwell amongst." This rule applied only as long as G'd's presence was still in the Tabernacle. Once the Tabernacle had been dismantled so that the שכינה had moved, even people afflicted with צרעת were allowed in the camp (Menachot 95).

מזכר עד נקבה תשלחו, “be such a person male or female he or she must be removed from the camps forbidden for their category of defilement.” The verse teaches that in respect of ritual defilement the Torah does not make a distinction between minors and adults, males or females.

ולא יטמאו את מחניהם, “in order that their presence while in such a state does not confer ritual impurity on the entire camp.” They must also undergo a purification process for having committed robbery, or possibly indulged in forbidden sexual relations. Also a Nazarite who is in doubt about having violated the terms of his vow must undergo purification.