Exodus 25:17-19

Also thou shalt make a Mercie seate of pure golde, two cubites and an halfe long, and a cubite and an halfe broade.

And thou shalt make two Cherubims of golde: of worke beaten out with the hammer shalt thou make the at ye two endes of the Merciseate.

And the one Cherub shalt thou make at the one ende, and the other Cherub at the other ende: of the matter of the Mercieseate shall ye make the Cherubims, on the two endes thereof.