Then what will be left over of the canopies which are prepared for the roof, that is, one canopy which is in excess, from half of it you shall cover the back of the tabernacle
Other versions
King James Version
And the remnant that remaineth of the curtains of the tent, the half curtain that remaineth, shall hang over the backside of the tabernacle.English Standard Version
And the part that remains of the curtains of the tent, the half curtain that remains, shall hang over the back of the tabernacle.New International Version
As for the additional length of the tent curtains, the half curtain that is left over is to hang down at the rear of the tabernacle.