Shemot 26:17-19

Orthodox Jewish Bible

¹⁷ Two yadot (tenons, projections) shall there be in each keresh (plank), set in order one against another: thus shalt thou make for all the kerashim (planks) of the Mishkan.

¹⁸ And thou shalt make the kerashim (planks) for the Mishkan, twenty kerashim (planks) on the south side southward.

¹⁹ And thou shalt make arba’im sockets of kesef under the twenty kerashim (planks); two sockets under one keresh (plank) for its two yadot (tenons, projections), and two sockets under the next keresh (plank) for its two yadot.