Exodus 27:6-8

New King James Version

⁶ And you shall make poles for the altar, poles of acacia wood, and overlay them with bronze. ⁷ The poles shall be put in the rings, and the poles shall be on the two sides of the altar to bear it. ⁸ You shall make it hollow with boards; ^(A)as it was shown you on the mountain, so shall they make it.