Complete Commentary on the Whole Bible, by Matthew Henry, at sacred-texts.com
(v. 1-43) The numbering of the Israelites.
(Num 1:44-46) The number of the people.
(Num 1:47-54) The Levites not numbered with the rest.
The people were numbered to show God's faithfulness in thus increasing the seed of Jacob, that they might be the better trained for the wars and conquest of Canaan, and to ascertain their families in order to the division of the land. It is said of each tribe, that those were numbered who were able to go forth to war; they had wars before them, though now they met with no opposition. Let the believer be prepared to withstand the enemies of his soul, though all may appear to be peace.
We have here the sum total. How much was required to maintain all these in the wilderness! They were all provided for by God every day. When we observe the faithfulness of God, however unlikely the performance of his promise may appear, we may take courage as to those which yet remain to be fulfilled to the church of God.
Care is here taken to distinguish the tribe of Levi, which, in the matter of the golden calf, had distinguished itself. Singular services shall be recompensed by singular honours. It was to the honour of the Levites, that to them was committed the care of the tabernacle and its treasures, in their camps and in their marches. It was for the honour of the holy things that none should see them, or touch them, but those who were called of God to the service. We all are unfit and unworthy to have fellowship with God, till called by his grace into the fellowship of his Son Jesus Christ our Lord; and so, being the spiritual seed of that great High Priest, we are made priests to our God. Great care must be taken to prevent sin, for preventing sin is preventing wrath. Being a holy tribe, they were not reckoned among other Israelites. They that minister about holy things, should neither entangle themselves, nor be entangled, in worldly affairs. And let every believer seek to do what the Lord has commanded.