When the tabernacle and the furniture of it were prepared, they did not put off the rearing of it till they came to Canaan, though they now hoped to be there very shortly; but, in obedience to the will of God, they set it up in the midst of their camp, while they were in the wilderness. Those that are unsettled in the world must not think that this will excuse them in their continued irreligion; as if it were enough to begin to serve God when they begin to be settled in the world. No; a tabernacle for God is a very needful and profitable companion even in a wilderness, especially considering that our carcases may fall in that wilderness, and we may be fixed in another world before we come to fix in this.
The rearing of the tabernacle was a good day's work; the consecrating of it, and of the priests, was attended to some days after. Here we have an account only of that new-year's-day's work. 1. Moses not only did all that God directed him to do, but in the order that God appointed; for God will be sought in the due order. 2. To each particular there is added an express reference to the divine appointment, which Moses governed himself by as carefully and conscientiously as the workmen did; and therefore, as before, so here it is repeated, as the Lord commanded Moses, seven times in less than fourteen verses. Moses himself, as great a man as he was, would not pretend to vary from the institution, neither to add to it nor diminish from it, in the least punctilio. Those that command others must remember that their Master also is in heaven, and they must do as they are commanded. 3. That which was to be veiled be veiled (Exo 40:21), and that which was to be used he used immediately, for the instruction of the priests, that by seeing him do the several offices they might learn to do them the more dexterously. Though Moses was not properly a priest, yet he is numbered among the priests (Psa 99:6), and the Jewish writers call him the priest of the priests; what he did he did by special warrant and direction from God, rather as a prophet, or law-giver, than as a priest. He set the wheels a going, and then left the work in the hands of the appointed ministry. (1.) When he had placed the table, he set the show-bread in order upon it (Exo 40:23); for God will never have his table unfurnished. (2.) As soon as he had fixed the candlestick, he lighted the lamps before the Lord, Exo 40:25. Even that dark dispensation would not admit of unlighted candles. (3.) The golden altar being put in its place, immediately he burnt sweet incense thereon (Exo 40:27); for God's altar must be a smoking altar. (4.) The altar of the burnt-offering was no sooner set up in the court of the tabernacle than he had a burnt-offering, and a meat-offering, ready to offer upon it, Exo 40:29. Some think, though this is mentioned here, it was not done till some time after; but it seems to me that he immediately began the ceremony of its consecration, though it was not completed for seven days. (5.) At the laver likewise, when he had fixed that, Moses himself washed his hands and feet. Thus, in all these instances, he not only showed the priests how to do their duty, but has taught us that God's gifts are intended for use, and not barely for show. Though the altars, and table, and candlestick, were fresh and new, he did not say it was a pity to sully them; no, he handselled them immediately. Talents were given to be occupied, not to be buried.

And put the testimony into the ark - That is, the two tables on which the ten commandments had been written. See Exo 25:16. The ark, the golden table with the shew-bread, the golden candlestick, and the golden altar of incense, were all in the tabernacle, within the veil or curtains, which served as a door, Exo 40:22, Exo 40:24, Exo 40:26. And the altar of burnt-offering was by the door, Exo 40:29. And the brazen laver, between the tent of the congregation and the brazen altar, Exo 40:30; still farther outward, that it might be the first thing the priests met with when entering into the court to minister, as their hands and feet must be washed before they could perform any part of the holy service, Exo 40:31, Exo 40:32. When all these things were thus placed, then the court that surrounded the tabernacle, which consisted of posts and hangings, was set up, Exo 40:33.

But if the cloud were not taken up, then they journeyed not,.... Even if it continued so two days, or a month, or a year, as very probably it sometimes did; which will in some measure account for the long continuance of the Israelites in the wilderness, see Num 9:22.

till the day that it was taken up: or, "of its ascent" (f), being "lifted up", or going upwards, higher in the air, right over the tabernacle, or perhaps more to the front of it; the word used before in this and the preceding verse has the signification of ascending upwards.

(f) "sustolli ejus", Montanus.

So Moses finished the work--Though it is not expressly recorded in this passage, yet, from what took place on all similar occasions, there is reason to believe that on the inauguration day the people were summoned from their tents--were all drawn up as a vast assemblage, yet in calm and orderly arrangement, around the newly erected tabernacle.