Exodus 26:1, 9, 12

“Moreover, you shall make the tabernacle with ten curtains of fine twined linen and blue and purple and scarlet yarns; you shall make them with cherubim skillfully worked into them.

You shall couple five curtains by themselves, and six curtains by themselves, and the sixth curtain you shall double over at the front of the tent.

And the part that remains of the curtains of the tent, the half curtain that remains, shall hang over the back of the tabernacle.