Exodus 37:6
He constructed a mercy seat of pure gold, two and a half cubits long and a cubit and a half wide.
What it says
He constructs the mercy seat from pure gold with the given dimensions. The verse names the covering that belongs above the ark.
What it is doing
It introduces the next sacred furnishing with its material and size.
In context
6He constructed a mercy seat of pure gold, two and a half cubits long and a cubit and a half wide. 7He made two cherubim of hammered gold at the ends of the mercy seat, 8one cherub on one end and one on the other, all made from one piece of gold. 9And the cherubim had wings that spread upward, overshadowing the mercy seat. The cherubim faced each other, looking toward the mercy seat.