LEV152 By reflecting on the instruments needed to purify the metzora, we can appreciate the severity of lashon hora. Rabbi Simcha Zissel Ziv of Kelm wrote that studying the portion of Metzora is analogous to visiting a doctor prior to an operation. If the patient sees that the doctor requires a large amount of the surgical instruments for the operation, it will frighten him. Let us look at the instruments required by the Torah to purify the metzora after he is healed from the physical aspects of the affliction: [this verse]. The Torah continues for an entire section with a description of the instruments and operations that are necessary to cure the metzora spiritually. From here and we can learn the gravity of loshon hora, and should be deterred from this sin. (Chochmah Umussar, vol. 1, p. 332).