Exodus 26:28

26:28 The middle bar in the center of the frames will reach from end to end. ¹ 

Exodus 36:33

36:33 He made the middle bar to reach from end to end in the center of the frames.

Exodus 13:20

13:20 They journeyed from Sukkoth and camped in Etham, on the edge of the desert.

[26:28]  ¹ sn These bars served as reinforcements to hold the upright frames together. The Hebrew term for these bars is also used of crossbars on gates (Judg 16:3; Neh 3:3).