(א) וַיְדַבֵּ֣ר יְהוָ֔ה אֶל־מֹשֶׁ֥ה וְאֶֽל־אַהֲרֹ֖ן לֵאמֹֽר׃ (ב) אָדָ֗ם כִּֽי־יִהְיֶ֤ה בְעוֹר־בְּשָׂרוֹ֙ שְׂאֵ֤ת אֽוֹ־סַפַּ֙חַת֙ א֣וֹ בַהֶ֔רֶת וְהָיָ֥ה בְעוֹר־בְּשָׂר֖וֹ לְנֶ֣גַע צָרָ֑עַת וְהוּבָא֙ אֶל־אַהֲרֹ֣ן הַכֹּהֵ֔ן א֛וֹ אֶל־אַחַ֥ד מִבָּנָ֖יו הַכֹּהֲנִֽים׃ (ג) וְרָאָ֣ה הַכֹּהֵ֣ן אֶת־הַנֶּ֣גַע בְּעֽוֹר־הַ֠בָּשָׂר וְשֵׂעָ֨ר בַּנֶּ֜גַע הָפַ֣ךְ ׀ לָבָ֗ן וּמַרְאֵ֤ה הַנֶּ֙גַע֙ עָמֹק֙ מֵע֣וֹר בְּשָׂר֔וֹ נֶ֥גַע צָרַ֖עַת ה֑וּא וְרָאָ֥הוּ הַכֹּהֵ֖ן וְטִמֵּ֥א אֹתֽוֹ׃
(1) The LORD spoke to Moses and Aaron, saying: (2) When a person has on the skin of his body a swelling, a rash, or a discoloration, and it develops into a scaly affection on the skin of his body, it shall be reported to Aaron the priest or to one of his sons, the priests. (3) The priest shall examine the affection on the skin of his body: if hair in the affected patch has turned white and the affection appears to be deeper than the skin of his body, it is a leprous affection; when the priest sees it, he shall pronounce him unclean.
Why might an external disease prevent someone from wanting to commit a crime?
Was the goal of Tzaraat to humiliate someone into not wanting to transgress, or was it just an illness that renders you unclean?
How would isolation (quarantine if you will) affect the punishment? Is it sparing the person from further embarrassment or just drawing more attention to their situation?
In this case, Tzaraat was given as a punishment. Does that also apply to the Tzaraat we see in Tazria?
Does Tzaraat fit into the categories above? Should it be seen as a punishment because of these pesukim?
(א) כִּֽי־יִהְיֶ֥ה רִיב֙ בֵּ֣ין אֲנָשִׁ֔ים וְנִגְּשׁ֥וּ אֶל־הַמִּשְׁפָּ֖ט וּשְׁפָט֑וּם וְהִצְדִּ֙יקוּ֙ אֶת־הַצַּדִּ֔יק וְהִרְשִׁ֖יעוּ אֶת־הָרָשָֽׁע׃ (ב) וְהָיָ֛ה אִם־בִּ֥ן הַכּ֖וֹת הָרָשָׁ֑ע וְהִפִּיל֤וֹ הַשֹּׁפֵט֙ וְהִכָּ֣הוּ לְפָנָ֔יו כְּדֵ֥י רִשְׁעָת֖וֹ בְּמִסְפָּֽר׃ (ג) אַרְבָּעִ֥ים יַכֶּ֖נּוּ לֹ֣א יֹסִ֑יף פֶּן־יֹסִ֨יף לְהַכֹּת֤וֹ עַל־אֵ֙לֶּה֙ מַכָּ֣ה רַבָּ֔ה וְנִקְלָ֥ה אָחִ֖יךָ לְעֵינֶֽיךָ׃ (ס)
This is another example of public punishment whose goal is to discourage someone to sin against Hashem or against one's fellow. In your opinion, is lashes or Tzaraat a worse punishment? (You might think the answer is be obvious, but think about how someone in either of these cases might feel. Also you are seen as ritually impure and have to isolate when you have Tzaraat. The same does not go for lashes.)
Being ritually impure says a lot about Tzaraat, and how we can relate it to our own lives. When someone is affected by the disease, they are ritually impure. When someone has done something wrong, they feel that way. They feel guilty. We can see the isolation time away from everybody and everything as a time for reflection. How can you be better? Taking the time to ask yourself this can help you improve in the future and might have been what Hashem was trying to accomplish here. This is something to think about next time we do something wrong or offend somebody. We can take time to contemplate about what we did and how we can make amends.