Exodus 40:3

3 and hast set there the ark of the testimony, and hast covered over the ark with the vail,

Exodus 40:3 Meaning and Commentary

Exodus 40:3

And thou shall put therein the ark of the testimony
The ark or chest where the law was, a testimony of the divine will, and which was to be put into the most holy place of the tabernacle:

and cover the ark with the vail;
not with the propitiatory or mercy seat, as the Targum of Jonathan; for though that was a covering or lid to the ark, yet not a vail; this was the vail that divided between the holy place and the most holy, and so covered or hid the ark from the sight even of the priests that went into the holy place.

Exodus 40:3 In-Context

1 And Jehovah speaketh unto Moses, saying,
2 `On the first day of the month, in the first month, thou dost raise up the tabernacle of the tent of meeting,
3 and hast set there the ark of the testimony, and hast covered over the ark with the vail,
4 and hast brought in the table, and set its arrangement in order, and hast brought in the candlestick, and caused its lamps to go up.
5 `And thou hast put the golden altar for perfume before the ark of the testimony, and hast put the covering of the opening to the tabernacle,
Young's Literal Translation is in the public domain.