And he that owneth the house shall come, and tell the priest,.... As soon as he observes any sign of leprosy in it, or which gives him a suspicion of it:

saying, it seemeth unto me there is as it were a plague in the house; he must not say expressly there is one, how certain soever he may be of it, because the matter must be determined by a priest: so runs the Jewish canon (i), he whose the house is comes and declares to the priest, saying, there appears to me as a plague in the house; and though he is a wise man, and knows that there is a plague certainly, he may not determine, and say, there appears to me a plague in the house, but there appears to me as it were a plague in the house; it looks like one, there is some reason to suspect it.

(i) Misn. Negaim, c. 12. sect. 5. Jarchi in loc.

When the evil showed itself in a house, the owner was to send this message to the priest, "A leprous evil has appeared in my house," and the priest, before entering to examine it, was to have the house cleared, lest everything in it should become unclean. Consequently, as what was in the house became unclean only when the priest had declared the house affected with leprosy, the reason for the defilement is not to be sought for in physical infection, but must have been of an ideal or symbolical kind.

And he that owneth the house shall come and tell the priest, saying, It seemeth to me there is as it were a plague in the house:

14:33-53 The leprosy in a house is unaccountable to us, as well as the leprosy in a garment; but now sin, where that reigns in a house, is a plague there, as it is in a heart. Masters of families should be aware, and afraid of the first appearance of sin in their families, and put it away, whatever it is. If the leprosy is got into the house, the infected part must be taken out. If it remain in the house, the whole must be pulled down. The owner had better be without a dwelling, than live in one that was infected. The leprosy of sin ruins families and churches. Thus sin is so interwoven with the human body, that it must be taken down by death.