Concealing the name of the wicked

Hi,

Most prophets are introduced in their texts with the list of kings during whose reign they prophesied. However:

"Yoel, Nachum and Chavakuk prophesied in the days of King Menasheh. Because Menasheh was not kosher, they were not identified with his name."

(Midrash, Seder Olam 20)

Have a great day,
Mordechai