40:16-33 When the tabernacle and the furniture of it were prepared, they did not put off rearing it till they came to Canaan; but, in obedience to the will of God, they set it up in the midst of their camp. Those who are unsettled in the world, must not think that this will excuse want of religion; 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 very needful, even in a wilderness, especially as we may be in another world before we come to fix in this. And we may justly fear lest we should deceive ourselves with a form of godliness. The thought that so few entered Canaan, should warn young persons especially, not to put off the care of their souls.When they went into the tent of the congregation,.... Not only at this time, but at all other times:

and when they came near unto the altar, they washed; to the altar of burnt offering to offer sacrifice; and also to the altar of incense, and burn incense on that; for before whatever service they performed in the tabernacle they washed:

as the Lord commanded Moses; Exodus 30:20 this phrase is near twenty times expressed in this and the preceding chapter, to show that everything was done by the workmen, and everything put in its proper place by Moses, exactly according to the will of God; no one pursuing his own fancy and private judgment, but all consulting the mind of God, and acting according to that.