Peter Pett's Commentary on the Bible
Leviticus 13:9-17
Dealing With Chronic Skin Diseases (Leviticus 13:9).
‘When the plague of a suspicious skin disease is in a man, then he shall be brought to the priest, and the priest shall look, and, behold, if there be a white rising in the skin, and it has turned the hair white, and there be quick raw flesh in the rising, it is an old suspicious skin disease in the skin of his flesh, and the priest shall pronounce him unclean. He shall not shut him up, for he is unclean.”
In this case the man or his relatives are suspicious about some symptom that has occurred in someone who has previously been cleared of skin disease, because it look so inflamed, so they bring him to the priest. The priest will then check it and if he discovers that there is a white rising in the skin which has turned the hair white, and also an inflamed rising elsewhere in the skin, he must immediately declare him unclean. Quick action needs to be taken. He is not to be quarantined within the camp but immediately put out of the camp.
‘And if the suspicious skin disease breaks out abroad in the skin, and the suspicious skin disease covers all the skin of him who has the plague from his head even to his feet, as far as appears to the priest, then the priest shall look, and, behold, if the suspicious skin disease has covered all his flesh, he shall pronounce him clean who has the disease: it is all turned white. He is clean.”
On the other hand if in fact he discovers that the skin disease has spread to cover the whole of his body from head to foot it is clearly something harmless and he can be declared clean. It may simply be due to a lack of pigmentation.
“But whenever raw flesh appears in him, he shall be unclean. And the priest shall look on the raw flesh, and pronounce him unclean. The raw flesh is unclean. It is a suspicious skin disease.”
But whenever raw flesh appears the situation changes, the man is declared unclean.
“Or if the raw flesh change again, and be changed to white, then he shall come to the priest, and the priest shall look on him, and, behold, if the plague be turned into white, then the priest shall pronounce him clean who has the disease. He is clean.”
But if the raw flesh then changes again and becomes white the priest can alter the diagnosis and proclaim him clean. So ‘raw flesh' that remains raw flesh and gets worse is clearly the test. If it does so the man is unclean, if it dies down the man is clean.
The constant repetition stresses the need for us to continually examine ourselves before our Great High Priest. There are many different types of sin by which we can be affected. What is there about us that would draw attention to our plagued condition? Let us quickly respond to it and rid ourselves of it that we might be truly ‘clean'.
We must distinguish between what is superficial and does not really affect us at all, giving only an appearance of sin, what is not truly sin within (although we should still avoid the appearance of sin - 1 Thessalonians 5:22), not filling our thoughts with trivialities, and what is more serious and becomes ‘raw flesh', inflamed and deep. If the latter is at all true of us we need quickly to ensure that we come to the Great Physician and seek His remedy. Then we will be able to be declared clean.