"You shall make a mercy seat of pure gold; two and a half cubits shall be its length and a cubit and a half its width.
Exodus 25:17
Surrounding context
25:16 And you shall put into the ark the Testimony which I will give you.
25:17 "You shall make a mercy seat of pure gold; two and a half cubits shall be its length and a cubit and a half its width.
25:18 And you shall make two cherubim of gold; of hammered work you shall make them at the two ends of the mercy seat.