Negaim 1:2-3

Negaim 1:2

The red tint of the snow whiteness is like wine mixed with snow. The red tint of the plaster whiteness is like blood mixed with milk; this is the opinion of Rabbi Yishmael. Rabbi Akiva says that the redness in either of them is like wine mixed with water except that it’s brighter in the snow whiteness and fainter in the plaster whiteness.

Negaim 1:3

These four colors combine with one another in order to free a person from impurity, to confirm his impurity or to quarantine him, i.e., to quarantine one who is stable at the end of his first week, to declare one free at the end of his second week, and to confirm one on whom a discoloration or white hair appeared – at the end of his first week, at the end of his second week or after being declared free; to confirm when spreading occurred at the end of the first week, at the end of the second week or after being declared free; to confirm when all of one’s skin turns white after being declared free; to free when all of one’s skin turns white after being confirmed or quarantined. These are the colors of negaim upon which negaim depend.