Exodus 27:13-17

The width of the courtyard on the east side shall be fifty cubits.

The hangings for the one side of the gate shall be fifteen cubits, with their three pillars and their three bases.

And for the other side there shall be hangings of fifteen cubits, with their three pillars and their three bases.

And for the gate of the courtyard there shall be a curtain of twenty cubits, of violet, purple, and scarlet material and fine twisted linen, the work of a weaver, with their four pillars and their four bases.

All the pillars around the courtyard shall be joined together with silver, with their hooks of silver and their bases of bronze.