Komentarz do Kapłańska 13:2

'שאת או ספחת וגו‎ — These are the names of leprous plagues — A RISING, A SCAB etc., — and they are the one whiter than the other (cf. Shevuot 5b; Sifra, Tazria Parashat Nega'im, Section 1 4).

SE’EITH O SAPACHATH O BAHERETH’ (A RISING, OR A SCAB, OR A BRIGHT SPOT). “These are the names of the plagues, each one whiter than the other.” This is Rashi’s language. Rabbi Abraham ibn Ezra wrote that “se’eith is a term for ‘burning,’ the word being associated with the expressions: ‘v’hamaseith’ (and the beacon) began to arise up;⁵²Judges 20:40. ‘va’yisa’eim’ (and) David (burned them).⁵³II Samuel 5:21. It is possible that it is called se’eith [literally: ‘uprising,’ ‘swelling’], because it is in the nature of fire to rise upwards. Sapachath is of the root: ‘sphacheini’ (attach me), I pray;⁵⁴I Samuel 2:36. ‘v’nispechu’ (and they shall cleave) to the house of Jacob⁵⁵Isaiah 14:1. — signifying a sickness which attaches to one place. Bahereth is of the root, ‘bahir’ (bright) in the skies,⁵⁶Job 37:21. becoming a sort of sign or mark.” [Thus far is Ibn Ezra’s interpretation.] If so, the term se’eith is the name of the plague caused by the bitter green burning fluid [in the body],⁵⁷See in Seder Vayikra Note 264. and bahereth is caused by the white fluid, and sapachath is brought about by a combination of both of these fluids. Now our Rabbis have said:⁵⁸Shebuoth 6 b. “The word se’eith is always an expression of ‘rising,’ and so it is stated in Scripture, And upon all the high mountains, and upon all the hills ‘hanisa’oth’ (that are lifted up),⁵⁹Isaiah 2:14. and sapachath always means ‘attachment,’⁶⁰This means as follows: The two principal colors of leprosy-sign are bahereth and se’eith. To each of these two colors Scripture has added a sapachath — a second shade of it. Thus the number of colors is four. See further, Notes 105 and 107, for the precise nature of these colors and their gradations. and so it is stated in Scripture, ‘sphacheini’ (attach me), I pray.”⁵⁴I Samuel 2:36.

אדם כי יהיה בעור בשרו, generally, such phenomena occur when one did not purify oneself from the effects of having had sexual relations or direct contact with the seed of a menstruating woman.