What does Ezekiel 40:15 mean?

And from the forefront of the gate at the entrance unto the forefront of the inner porch of the gate were fifty cubits.

And from the face of the gate of the entrance unto the face of the porch of the inner gate were fifty cubits.

And from the forefront of the gate at the entrance unto the forefront of the inner porch of the gate were fifty cubits.

And from before the opening of the doorway to before the inner covered way of the doorway was fifty cubits.

and by the front of the gate of the entrance, by the front of the porch of the inner gate, fifty cubits;

And before the face of the gate which reached even to the face of the porch of the inner gate, fifty cubits.

And from the front of the gate of the entrance unto the front of the porch of the inner gate were fifty cubits.