Exodus 37:6

3 And he cast for it four rings of gold, in the four feet thereof; even two rings on the one side of it, and two rings on the other side of it.

4 And he made staves of acacia wood, and overlaid them with gold.

5 And he put the staves into the rings on the sides of the ark, to bear the ark.

6 And he made a mercy-seat of pure gold: two cubits and a half [was] the length thereof, and a cubit and a half the breadth thereof.

7 And he made two cherubim of gold; of beaten work made he them, at the two ends of the mercy-seat;

8 one cherub at the one end, and one cherub at the other end: of one piece with the mercy-seat made he the cherubim at the two ends thereof.

9 And the cherubim spread out their wings on high, covering the mercy-seat with their wings, with their faces one to another; toward the mercy-seat were the faces of the cherubim.