Exodus 25:18-20

18And you shall make two cherubim of gold; of hammered work you shall make them at the two ends of the mercy seat.

19Make one cherub at one end, and the other cherub at the other end; you shall make the cherubim at the two ends of it of one piece with the mercy seat.

20And the cherubim shall stretch out their wings above, covering the mercy seat with their wings, and they shall face one another; the faces of the cherubim shall be toward the mercy seat.