Exodus 26:31-33

And thou shalt make a veil of blue, and purple, and scarlet, and fine twined linen: with cherubim the work of the skilful workman shall it be made: and thou shalt hang it upon four pillars of acacia overlaid with gold; their hooks shall be of gold, upon four sockets of silver. And thou shalt hang up the veil under the clasps, and shalt bring in thither within the veil the ark of the testimony: and the veil shall separate unto you between the holy place and the most holy.