Nehemiah 8:2

And the king went up to the house of Yahweh and all the men of Judah, and the inhabitants of Jerusalem, and the priests and the Levites and all the people, from the greatest to the least; and he read in their hearing all the words of the book of the covenant which was found in the house of Yahweh.

Then Nehemiah, who was the governor, and Ezra the priest and scribe, and the Levites, who provided the people with understanding, said to all the people, “This day is holy to Yahweh your God; do not mourn or weep.” For all the people were weeping when they heard the words of the law.

Now on the twenty-fourth day of this month the sons of Israel gathered with fasting, in sackcloth and with dirt upon them.