וְאַרְבָּעָה אֲנָשִׁים הָיוּ מְצֹרָעִים פֶּתַח הַשָּׁעַר וַיֹּאמְרוּ אִישׁ אֶל רֵעֵהוּ מָה אֲנַחְנוּ יֹשְׁבִים פֹּה עַד מָתְנוּ
There were four men, lepers, at the entrance of the gate. One said to another, “Why should we sit here until we die?”
The Talmud in Sanhedrin (107b) tells us that this was Gechazi and his three sons. The prophet Elisha had previously cursed Gechazi and his descendants with leprosy in chapter 5 because Gechazi made a terrible chillul Hashem.