Esther 4:1-3

When Mordecai learned of everything that had been done, he tore his clothes, put on sackcloth and ashes, and went out into the midst of the city and wailed loudly and bitterly.

And he came as far as the king’s gate, for no one was to enter the king’s gate clothed in sackcloth.

In each and every province where the command and decree of the king came, there was great mourning among the Jews, with fasting, weeping, and mourning rites; and many had sackcloth and ashes spread out as a bed.