'Semen' in the Bible

But Onan knew that the offspring would not be his, so whenever he slept with his brother’s wife, he released his semen on the ground so that he would not produce offspring for his brother.

“When a man has an emission of semen, he is to bathe himself completely with water, and he will remain unclean until evening.

Any clothing or leather on which there is an emission of semen must be washed with water, and it will remain unclean until evening.

If a man sleeps with a woman and has an emission of semen, both of them are to bathe with water, and they will remain unclean until evening.

This is the law for someone with a discharge: a man who has an emission of semen, becoming unclean by it;

" 'And when a man lies with a woman [and there is] an emission of semen and she [is] a female slave promised to a man, but she indeed has not been ransomed or freedom has not be given to her, [there] shall be an obligation to compensate; they shall not be put to death, because she has not been freed.

No man of Aaron’s descendants who has a skin disease or a discharge is to eat from the holy offerings until he is clean. Whoever touches anything made unclean by a dead person or by a man who has an emission of semen,