Charles Ellicott Commentary 1 Kings 6:21

"So Solomon overlaid the house within with pure gold: and he drew chains of gold across before the oracle; and he overlaid it with gold." — 1 Kings 6:21 (ASV)

He made a partition by (the) chains of gold before the oracle.—This phrase is difficult. The Septuagint and Vulgate have wholly different readings; but our translation appears to be substantially correct, and to signify either that Solomon made a chain-work decoration on the partition, or (perhaps more probably) that he made a golden chain to go across the entrance in the partition before the Oracle, in front of the veil, so as to be an additional guard against intrusion.