Moses
Exodus 26:12ESV·traditional attribution

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

Matthew Henry Presbyterian @wholebiblehenry

Moses is here ordered to make a double covering for the tabernacle, that it might not rain in, and that the beauty of those fine curtains might not be damaged. 1. There was to be a covering of hair camlet curtains, which were somewhat larger every way than the inner curtains, because they were to enclose them, and probably were stretched out at some little...

Commenting on Exodus 26:7-14

John Gill Reformed Baptist @doctorgill

And a cubit on the one side, and a cubit on the other side o that which remaineth in the length of the curtains of the tent,.... The curtains of the tent, or the goat hair curtains, were two cubits longer than the other, and these are the two cubits, one on one side and the other on the other, which remained, and by which...

Geneva Bible Notes Reformed @genevanotes

And the remnant that remaineth of the curtains of the tent, the half curtain that remaineth, shall hang over the backside of the tabernacle. (f) For these curtains were two cubits longer than the curtain of the tabernacle so that they were wider by a cubit of both sides.