Charles Ellicott Commentary Numbers 4:25

"they shall bear the curtains of the tabernacle, and the tent of meeting, its covering, and the covering of sealskin that is above upon it, and the screen for the door of the tent of meeting," — Numbers 4:25 (ASV)

And the tabernacle of the congregation. — Better, And the tent of meeting. The mishkan or dwelling-place is distinguished in Numbers 3:25 from the ohel or tent which covered it. The curtains of the mishkan are represented in Exodus 26:6 as constituting the mishkan itself, the woodwork being apparently regarded as subsidiary to the curtains. These curtains were of fine-twined linen, while the curtains of the ohel or tent were of goats’ hair (Exodus 26:1; Exodus 26:7).

His covering. — i.e., the covering of rams’ skins, which is here distinguished from the outer covering of badgers’ skins (Exodus 26:14).

And the hanging for the door of the tabernacle of the congregation. — Better, the hanging (or covering) for the entrance of the tent of meeting (Exodus 26:36).