Matthew Poole and continuators on Leviticus 15:16

16 And if any mans seed of copulation go out from him , then he shall wash all his flesh in water, and be unclean until the even.

Not through weakness of the parts, as that ver. 3. but in his sleep, which is called nightly pollution, which though involuntary, might arise from some lustful dream or imagination. But if it was voluntary and by a mans own procurement when awake, it was esteemed abhominable and a degree of murder. See Gen. 38. 9.

Marginal references: Deut. 23. [illegible: 1 word]