Exodus 27:16

For the gate of the court there shall be a screen twenty cubits long, of blue and purple and scarlet yarns and fine twined linen , embroidered with needlework . It shall have four pillars and with them four bases .

“For the entrance to the courtyard, provide a curtain twenty cubits long, of blue, purple and scarlet yarn and finely twisted linen—the work of an embroiderer—with four posts and four bases.

And for the gate of the court shall be an hanging of twenty cubits, of blue, and purple, and scarlet, and fine twined linen, wrought with needlework : and their pillars shall be four, and their sockets four.