Exodus 25:15

12 `And thou hast cast for it four rings of gold, and hast put [them] on its four feet, even two rings on its one side, and two rings on its second side;

13 and thou hast made staves of shittim wood, and hast overlaid them [with] gold,

14 and hast brought the staves into the rings on the sides of the ark, to bear the ark by them,

15 in the rings of the ark are the staves, they are not turned aside from it;

16 and thou hast put unto the ark the testimony which I give unto thee.

17 `And thou hast made a mercy-seat of pure gold, two cubits and a half its length, and a cubit and a half its breadth;

18 and thou hast made two cherubs of gold, beaten work dost thou make them, at the two ends of the mercy-seat;