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.
BSB
The entrance to the bottom floor was on the south side of the temple. A stairway led up to the middle level, and from there to the third floor.
WEB
The door for the middle side rooms was in the right side of the house: and they went up by winding stairs into the middle story, and out of the middle into the third.
YLT
The opening of the middle side is at the right shoulder of the house, and with windings they go up on the middle one, and from the middle one unto the third.