Jeremiah 35:4

And I brought them into the house of the Lord, into the chamber of the sons of Hanan, the son of Igdaliah, a man of God, which was by the chamber of the princes, which was above the chamber of Maaseiah the son of Shallum, the keeper of the door:

Cross-reference

Jeremiah 35:2 commands bringing the Rechabites into the temple; here the specific chamber is identified.

Jeremiah 36:10–12 Historical context

In Jeremiah 36:10-12, Baruch reads the scroll in a temple chamber — showing chambers were used for prophetic activities, similar to bringing the Rechabites there.