Midrasch zu Bamidbar 35:34

"Outside of the camp shall you send them": What is the intent of this (after "They shall send out of the camp")? From "They shall send out of the camp," I might think the intent is (only) that they not touch the ark or its bearers, but they should be assigned a place for themselves (inside the camp). It is, therefore, written "Outside of the camp shall you send them": "and they shall not make unclean their camps" — whence (i.e., from the three-fold repetition of "camp") they stated: There were three camps: the Israelite camp, the Levite camp, and the camp of the Shechinah. From the entrance to Jerusalem until the Temple mount — the Israelite camp. From the entrance to the Temple mount until the azarah (the Temple courtyard) — the Levite camp. From the entrance to the azarah and inwards — the camp of the Shechinah. (Ibid. 3) "in whose midst I dwell": Beloved are Israel, who, even when they are tamei, the Shechinah is among them, as it is written (Vayikra 16:16) "who dwells with them in the midst of their uncleanliness," and (Bamidbar) 35:34) "And you shall not defile the land which you inhabit, in which I dwell, for I, the L-rd, dwell in the midst of the children of Israel (even when they are unclean)."

1) (Vayikra 16:16) ("And he shall make atonement for the holy place from the uncleanlinesses of the children of Israel, and from their offenses of all of their sins; and so shall he do for the tent of meeting that dwells with them in the midst of their uncleanlinesses.") "And he shall make atonement for the holy place from the uncleanlinesses of the children of Israel": Three "uncleanlinesses" may be adduced here: that of idolatry, viz. (Vayikra 20:3) ("for of his seed he has given to the Molech) to defile My Sanctuary and to profane My holy name"; that of illicit relations, viz. (Vayikra 18:30) "not to do in the manner of the abominations that were done before you, and you shall not become unclean in them"; that of bloodshed, viz. (Bamidbar 35:34) "And you shall not defile the land wherein you dwell, in whose midst I dwell."

(Bamidbar 35:34) "in whose midst I dwell": Beloved are Israel, for even when they are tamei the Shechinah reposes among them — (Vayikra 16:16) "who dwells with them in the midst of their uncleanliness," and (Ibid. 15:31) "… when they defile My sanctuary which is in their midst," and (Bamidbar 5:3) "and they shall not make unclean their camps in whose midst I dwell." (Ibid. 35:34) "for I the L-rd dwell in the midst of the children of Israel." R. Nathan says: Beloved are Israel, for wherever they are exiled the Shechinah is with them. They were exiled to Egypt — the Shechinah was with them, viz. (I Samuel 2:27) "Did I not reveal Myself to the house of your father when they were in Egypt (enslaved to) the house of Pharaoh?" They were exiled to Bavel — the Shechinah was with them, viz. (Isaiah 43:14) "Because of you I was sent to Bavel." They were sent to Eilam — the Shechinah was with them, viz. (Jeremiah 49:38) "I placed My throne in Eilam, and banished from there king and officers." They were exiled to Edom — the Shechinah was with them, viz. (Isaiah 63:1) "Who is This, who comes from Edom, with sullied vestments, from Batzrah?" And when they return, the Shechinah will be with them, viz. (Devarim 30:3) "Then the L-rd your G-d will return with your captivity and He will have mercy upon you." It is not written "and He will return to you," but "and He will return with you!" And it is written (Song of Songs 4:8) "With Me from the Levanon, My bride — with Me from the Levanon shall you come. You will look from the top of Amanah, from the top of Senir and Chermon, from the dens of lions, from the mountains of leopards." Rebbi says: An analogy: A king says to his servant: Why do you search for me? I am with my son. Whenever you need me, I am with my son. "For I, the L-rd dwell in the midst of the children of Israel."