Moses
Exodus 36:20ESV·traditional attribution
Then he made the upright frames for the tabernacle of acacia wood.
Matthew Henry Presbyterian
The hair-cloth curtains and rams' skins speak a plain language: God shelters His people from every storm, divine wrath and temporal tempest alike. The boards and bars that hold them fast show that the church's strength lies not in stone or timber, but in the union and agreement of those who bear her up.
AI summary
Commenting on Exodus 36:14-34
Geneva Bible Notes Reformed
And he made boards for the tabernacle [of] shittim wood, standing up. (f) And to bear up the curtains of the tabernacle.
Adam Clarke Methodist
And he made boards - See Clarke's note on Exo 26:15, etc.