Matthew Poole and continuators on Leviticus 13:19

19 And in the place of the bile there be a white rising, or a bright spot white, and somewhat reddish , and it be shewed to the priest:

(i. e.) White mixed with red, as when blood and milk are mixed together. A late learned writer renders the words thus, white and very bright or light, which indeed is the true colour of leprosy, to wit, when it is in its perfection, as Exod. 4. 6. &c. But here it was onely beginning and arising out of a bile, in which together with the white, which was the colour of the leprosy, there might be some mixture of redness arising from the bile, o[illegible: 1+ letters] that part of it which was not yet turned into the nature and colour of leprosy.