2 Chronicles 30:13-15

13Now many people, a very great assembly, gathered at Jerusalem to keep the Feast of Unleavened Bread in the second month.

14They arose and took away the altars that were in Jerusalem, and they took away all the incense altars and cast them into the Brook Kidron.

15Then they slaughtered the Passover lambs on the fourteenth day of the second month. The priests and the Levites were ashamed, and sanctified themselves, and brought the burnt offerings to the house of the Lord.