Exodus 36:31-38 records the making of the bars and other furnishings as commanded.

Exodus 36:32 records the actual construction of the bars — a direct narrative fulfillment of the command here.

Numbers 3:36 assigns the care of these bars to the Merarites, showing their role in transporting the tabernacle.

Numbers 4:31 repeats the assignment for the Merarites to carry the frames and bars.