The height was an hundred and twenty cubits - This height, which so much exceeds that of the main building 1 Kings 6:2, is probably to be corrected by the reading of the Arabic Version and the Alexandrian Septuagint, “twenty cubits.” But see 2 Chronicles 3:9.
Related Commentaries of 2 Chronicles 3:4
2 Chronicles 3:4
4 And the porch that was in the front of the house, the length of it was according to the breadth of the house, twenty cubits, and the height was an hundred and twenty: and he overlaid it within with pure gold.