34. When ye be come into the land. Another sort of leprosy is here treated of, as to which we may not unreasonably rejoice that it is now unknown to us. But, as God had honored that people with extraordinary privileges, so it was consistent that their ingratitude should be punished by more severe penalties, if they defiled the gifts in which they excelled. It is not to be wondered at, therefore, that punishments were inflicted upon them, which it fills us with surprise and horror to hear of. It was a sad sight to behold the leprosy invading the human body; but there was something portentous to perceive it affecting their houses also, and driving out the owners and their families; for if they wittingly and voluntarily remained there, the contagion spread to themselves and all their furniture. But, since God marked with public ignominy those whose houses were struck with leprosy, He commands them to confess their guilt, and not only when the evil had made much advance, but when any suspicion of it had begun to exist. It appears, too, from the Law, that some were but lightly chastised: for, if after the priest’s inspection, in seven days the plague did not increase on the scraped walls, the possessor returned to his house. God punished others more severely, and it was necessary that the building should be utterly destroyed, because the pollution was incurable. But, although these were tokens of God’s wrath, yet, inexpiating the uncleanness, He exercised His people in the study of purity; for it was just as if He drove away from approaching His sanctuary those who came from an unclean house. The sense, then, was that. they should each of them diligently endeavor to keep their houses pure, and chaste, and free from every stain. But if, through God’s mercy, the plague ceased, a sacrifice of thanksgiving was to be offered, as for the human beings (who had been healed.) The next chapter, in which general pollutions and their purifications are not treated of, but only one kind of pollution is glanced at, which has reference to fleshly lust, would perhaps be suitably introduced under the Seventh Commandment; but it will presently appear from the context that it must be brought under this head.