Exodus 25:18-20 (New King James Version)

¹⁸ And you shall make two cherubim of gold; of hammered work you shall make them at the two ends of the mercy seat. ¹⁹ Make 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. ²⁰ And 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.