Moses
Leviticus 15:17ESV·traditional attribution

And every garment and every skin on which the semen comes shall be washed with water and be unclean until the evening.

Matthew Henry Presbyterian @wholebiblehenry

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

John Gill Reformed Baptist @doctorgill

And every garment, and every skin,.... Or that is made of skin, which a man wears, or lies upon, see Lev 13:48, whereon is the seed of copulation; or on any other, for, as Gersom says, there is the same law concerning the rest of vessels, seeing this is a principal uncleanness, and defiles vessels; and perhaps the law makes mention of these, because it...

Keil & Delitzsch Lutheran @keilanddelitzsch

Lev 15:16-17 Involuntary emission of seed. - This defiled for the whole of the day, not only the man himself, but any garment or skin upon which any of it had come, and required for purification that the whole body should be bathed, and the polluted things washed.

Commenting on Leviticus 15:16-17