Exodus 38:5-7

New Revised Standard Version, Anglicised Catholic Edition

⁵ He cast four rings on the four corners of the bronze grating to hold the poles; ⁶ he made the poles of acacia wood, and overlaid them with bronze. ⁷ And he put the poles through the rings on the sides of the altar, to carry it with them; he made it hollow, with boards.