Completing the Mahane

Parashat Naso elaborates on four different mitzvot. What is the significance of the placement of these mitzvot among the stories of Bemidbar? Sending the impure from the camp is part of the creation of a camp worthy of God's Divine Presence. Apparently Sotah and Nazir, and even the Guilt Offering for Abuse of Sanctified Property, address the social ramifications of this theme. The Camp is a spiritual, as well as physical, entity. As such, it must remain pure, and focused on its purpose and objective - enabling God to dwell within His nation.