ritual purity

Tzara'at laws were given to Israel. A non-Jew with tzara'at is not impure, because only those close to Hashem must be cautious of His touch.

Ritual impurities are usually seen as negative: death, leprosy, and such. But childbirth is incredibly positive! Why, then, does it come with impurity?

Understanding the religious reasoning behind a viral image of an ultra-Orthodox man covered in plastic wrap on an airplane