Exodus 26:33

33 Hang the curtain from the clasps and place the ark of the covenant law behind the curtain. The curtain will separate the Holy Place from the Most Holy Place.

Read Exodus 26:33 Using Other Translations

And thou shalt hang up the vail under the taches, that thou mayest bring in thither within the vail the ark of the testimony: and the vail shall divide unto you between the holy place and the most holy.
And you shall hang the veil from the clasps, and bring the ark of the testimony in there within the veil. And the veil shall separate for you the Holy Place from the Most Holy.
Hang the inner curtain from clasps, and put the Ark of the Covenant in the room behind it. This curtain will separate the Holy Place from the Most Holy Place.