The covering or lid of the Ark was the Mercy Seat with two cherubim on each end, all beaten out of one piece of pure gold. The cherubim were facing each other and their wings overshadowed the Mercy Seat.

It was here, from above the Mercy Seat that God spoke to Moses. This was where the blood of the slain bullock was sprinkled as atonement for the sin of the nation, once a year on the Day of Atonement.