Exodus 26:1-3

Moreover thou shalt make the tabernacle with ten curtains; of fine twined linen, and blue, and purple, and scarlet, with cherubim the work of the skilful workman shalt thou make them. The length of each curtain shall be eight and twenty cubits, and the breadth of each curtain four cubits: all the curtains shall have one measure. Five curtains shall be coupled together one to another; and the other five curtains shall be coupled one to another.