Tazria / Metzorah

This is to be the Instruction [regarding] the one-with-tzaraat, at the time of his being purified: he is to be brought to the priest.

"This shall be the law for a leper" - this is what is written (Psalms 36:13), "Who is the man who desires life?" There is a story of a peddler who would go around to towns that were close to Tzippori. He would shout out and say, "Who wants to buy the [potion] of life?" They would [all] cling to him. Rabbi Yannai was sitting and interpreting [texts] in his reception room [and] heard him shouting out, "Who wants to buy the [potion] of life?" [Rabbi Yannai] said, "Come down to here, sell [it] to me." He said [back] to him, "You do not need it and those like you do not [need it]." [Nonetheless,] he made the effort to come and go down to him. He took out a book of Psalms and showed him the verse, "Who is the man who desires life?" [The peddler said,] "What is written after it - 'guard your tongue from evil [...] Turn away from evil and do good' (Psalms 34:14-15)." Rabbi Yannai said, "Shlomo also shouted out and said (Proverbs 21:23), 'He who guards his mouth and his tongue, guards his soul from troubles.'" Rabbi Yannai said "All of my days I was reading this verse and I did not know how to interpret it until this peddler came and made it understood - 'Who is the man who desires life?'" Therefore, Moshe warns Israel and says to them, "This shall be the law for a leper (metsora)" - the law of the one that gives out a bad name (motsee shem).

(13) Who is the man who is eager for life, who desires years of good fortune? (14) Guard your tongue from evil, your lips from deceitful speech. (15) Shun evil and do good, seek amity and pursue it.

Four are considered as if they were dead: A pauper, and a leper, and a blind person, and one who has no children.