And if the one with the discharge spits on someone who is clean, then he shall wash his clothes and bathe himself in water and be unclean until the evening.
We have here the law concerning the ceremonial uncleanness that was contracted by running issues in men. It is called in the margin (Lev 15:2) the running of the reins: a very grievous and loathsome disease, which was, usually the effect and consequent of wantonness and uncleanness, and a dissolute course of life, filling men's bones with the sins of their youth, and leaving them...
Commenting on Leviticus 15:1-18
And if he that hath the issue spit upon him that is clean,.... Not purposely, which is not usual for a man to do, and whenever it is done, nothing is more affronting; but accidentally, when, as Aben Ezra expresses it, he spreads his spittle, and it falls upon a clean person; and under this, as Gersom observes, is comprehended whatever is brought up by...
And if he that hath the issue spit upon him that is clean; then he shall wash his clothes, and bathe [himself] in water, and be unclean until the even. (c) Of whom the unclean man did spit.