Numbers 5:2

Put out of the camp every leper - According to the preceding plan, it is sufficiently evident that each camp had a space behind it, and on one side, whither the infected might be removed, and where probably convenient places were erected for the accommodation of the infected; for we cannot suppose that they were driven out into the naked wilderness. But the expulsion mentioned here was founded,

1. On a purely physical reason, viz., the diseases were contagious, and therefore there was a necessity of putting those afflicted by them apart, that the infection might not be communicated.

There was also a spiritual reason; the camp was the habitation of God, and nothing impure should be permitted to remain where he dwelt.

3. The camp was an emblem of the Church, where nothing that is defiled should enter, and in which nothing that is unholy should be tolerated. All lepers - all persevering impenitent sinners, should be driven from the sacred pale, nor should any such ever be permitted to enter.