Wesley Corpus

When the leper was anointed, the oil must have blood under it, to signify that all the graces and comforts of the spirit, all his sanctifying influences are owing to the death of Christ. It is by his blood alone that we are sanctified. That all be not made unclean - It is observable here, that neither the people nor the household stuff were polluted till the leprosy was discovered and declared by the priest, to shew what great difference God makes between sins of ignorance, and sins against knowledge. In the walls of the house - This was an extraordinary judgment of God peculiar to this people, either as a punishment of their sins, which were much more sinful and inexcusable than the sins of other nations; or as a special help to repentance, which God afforded them above other people; or as a token of the mischievous nature of sin, typified by leprosy, which did not only destroy persons, but their habitations also: Hollow streaks - Such as were in the bodies of leprous persons. An unclean place - Where they used to cast dirt and filthy things. To teach - To direct the priest when to pronounce a person or house clean or unclean. So it was not left to the priests power or will, but they were tied to plain rules, such as the people might discern no less than the priest.