2 Chronicles 29:3, 16

Hezekiah opened the doors of the Temple of the LORD and repaired them in the first month of the first year he was king.

When the priests went into the Temple of the LORD to purify it, they took out all the unclean things they found in the Temple of the LORD and put them in the Temple courtyard. Then the Levites took these things out to the Kidron Valley.