You shall make the altar of acacia wood, five cubits long and five cubits wide--the altar is to be square--and three cubits high. Make its horns on the four corners, the horns to be of one piece with it; and overlay it with copper. Make the pails for removing its ashes, as well as its scrapers, basins, flesh hooks, and fire pans--make all its utensils of copper. Make for it a grating of meshwork in copper; and on the mesh make four copper rings at its four corners. Set the mesh below, under the ledge of the altar, so that it extends to the middle of the altar. And make poles for the altar, poles of acacia wood, and overlay them with copper. The poles shall be inserted into the rings, so that the poles remain on the two sides of the altar when it is carried. Make it hollow, of boards. As you were shown on the mountain, so shall they be made.