"וְהָיָה֩ בַיּ֨וֹם הַשְּׁבִיעִ֜י יְגַלַּ֣ח אֶת־כָּל־שְׂעָר֗וֹ אֶת־רֹאשׁ֤וֹ וְאֶת־זְקָנוֹ֙ וְאֵת֙ גַּבֹּ֣ת עֵינָ֔יו וְאֶת־כָּל־שְׂעָר֖וֹ יְגַלֵּ֑חַ וְכִבֶּ֣ס אֶת־בְּגָדָ֗יו וְרָחַ֧ץ אֶת־בְּשָׂר֛וֹ בַּמַּ֖יִם וְטָהֵֽר" - Perek Yud Daled, Pasuk Tet
Why did the torah have to first give a general statement, then a specific one, the another general one? Why did it have to be on the 7th day? Why did the torah specify these three places? Why did these actions then make him clean again?
What are other times the number 7 is symbolic in the Torah and what does it represent?
Rashi says: The general statement, followed by a specific statement followed again, by a general statement is to include every place where hair grows in a bunch and is visible, [bearing a similarity to the hair of the head, the beard, and the eyebrows]."