Spiritual Gems from the parsha

Metzora
The Torah portion is called metzora - "leper" - though it deals primarily with the purification process of an afflicted individual. This teaches us that the affliction was not only a punishment for slander, but to cause one to repent. Accordingly, the leprosy was actually part of the purification process, for once detected one was prompted to change.
(Lubavitcher Rebbe)
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On the subject of afflictions, the Talmud states, "A person sees all defects, except for his own," meaning that we are sometimes blind to our own faults. The Baal Shem Tov explained that when a person notices a spiritual defect in another, it is a sure sign that he suffers from the same problem himself, at least to a small degree. The Hebrew verse can also be read, "All defects that a person sees in his fellow, are his own defects."
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And he shall slaughter the sheep in the place where the sin-offering and the burnt-offering are slaughtered (Lev. 14:13)

Even though the burnt-offering was of a much higher sanctity than the sin-offering, they were brought in the same place to avoid embarrassing penitents who might hesitate to publicly proclaim their transgressions; onlookers would not know which offering was being brought.
(Mishna Sotah, 32)
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This is the law concerning the metzora - leper. (14:2)
The Biblical form of leprosy (tzaraat) is the punishment for an "evil tongue." This is hinted to us by the word "metzora" - motzei [shem] ra - one who brings forth a bad name.
(Midrash Tanchuma)
--------------------------------------------------------------------------------When Rabbi Levi Yitzchak of Berditchev would hear someone speak poorly of another person he would go up to him and say, "My dear friend, aren't you ashamed? You are slandering G-d's tefilin upon which it is written, "Who is Your People Israel."