1 Kings 6:8

The door for the middle chamber was in the right side of the house: and they went up with winding stairs into the middle chamber, and out of the middle into the third.

Cross-reference

Ezekiel 41:6 describes the side chambers of the temple vision—matching the architectural arrangement of Solomon's temple.

Ezekiel 41:7 mentions winding stairs that widen upward—directly parallel to the winding stairs in Solomon's temple.

Ezekiel 42:6 describes three stories in temple chambers, directly paralleling the three-story structure (lowest, middle, third) mentioned here.