Ezekiel 40:44-46 - Rooms For Priests And Other Worship Leaders
44 From outside leading into the inner gate there were chambers for the choir. One was beside the north gate facing the south, and another was at the south gate facing the north. 45 The angel told me, "This south-facing chamber is for the priests who maintain the Temple, 46 and the north-facing chamber is for the priests who maintain the altar. These are Zadok's descendants, who, as descendants of Levi approach the LORD to minister directly to him."