Exodus 26:19-21

Revised Standard Version

¹⁹ and forty bases of silver you shall make under the twenty frames, two bases under one frame for its two tenons, and two bases under another frame for its two tenons; ²⁰ and for the second side of the tabernacle, on the north side twenty frames, ²¹ and their forty bases of silver, two bases under one frame, and two bases under another frame;