Comentário sobre Levítico 14:35

כנגע נראה לי בבית SOMETHING LIKE A PLAGUE HATH SHOWN ITSELF TO ME IN THE HOUSE — Even if he (the owner of the house) be a learned man and knows for sure that it is a plague he shall not decide the matter as a certainty saying, "a plague hath shown itself to me" but, “something like a plague hath shown itself to me" (Mishnah Negaim 12:5; Sifra, Metzora, Section 5 10).

והגיד לכהן לאמור, and he shall tell the priest, saying, etc. The word לאמור appears to be superfluous. Torat Kohanim explains that the word means that the priest is to tell the afflicted person words of admonition, explaining to him why he had been so afflicted. This is pure homiletics, seeing that the Torah speaks of the owner of the house doing the talking, not the priest. Our sages simply used the principle of אם אינו ענין לדברי בעל הבית תנהו ענין לדברי כהן, "if we could not find a reason for the owner to say something other than what the Torah recorded here, we may apply the words exegetically to what the priest says instead." The author of Korban Aharon explains the sequence as follows: והגיד לכהן, the reason the owner of the affected house is forced to tell the priest about his problem is לאמוד, so that the priest can sermonize to him and explain why he was made to suffer this plague. If this explanation were correct the Torah should have written the word לאמור after the words כנגע נראה לי בבית, "it seems to me that the house has developed a plague." No doubt the approach of Torat Kohanim is quite correct.