וְצָרַ֤עַת נַֽעֲמָן֙ תִּֽדְבַּק־בְּךָ֔ וּֽבְזַרְעֲךָ לְעוֹלָ֑ם וַיֵּצֵ֥א מִלְּפָנָ֖יו מְצֹרָ֥ע כַּשָּֽׁלֶג׃ (ס)
The leprosy therefore of Naaman shall cleave unto thee, and unto thy seed for ever.’ And he went out from his presence a leper as white as snow.
Read kabbalistic (mystical) interpretation of II Kings 5:27: and classical mystical sources.