Exodus 39:18

39:18 the other two ends of the two chains they attached to the two settings, and they attached them to the shoulder pieces of the ephod at the front of it.

Exodus 26:23

26:23 You are to make two frames for the corners of the tabernacle on the back.

Exodus 36:28

36:28 He made two frames for the corners of the tabernacle on the back.