Exodus 36:27-29

Young's Literal Translation

²⁷ and for the sides of the tabernacle, westward, hath he made six boards;

²⁸ and two boards hath he made for the corners of the tabernacle, in the two sides;

²⁹ and they have been twins below, and together they are twins at its head, at the one ring; so he hath done to both of them at the two corners;