Exodus 27:6-8

New International Version

⁶ Make poles of acacia wood for the altar and overlay them with bronze.^{(A) 7} The poles are to be inserted into the rings so they will be on two sides of the altar when it is carried.^{(B) 8} Make the altar hollow, out of boards. It is to be made just as you were shown^(C) on the mountain.