Leviticus 15:17

15 The priest is to sacrifice them, one as a sin offering and the other as a burnt offering. In this way the priest will make atonement for the man before the LORD because of his discharge.

16 When a man has an emission of semen, he must bathe his whole body with water, and he will be 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.

18 If a man lies with a woman and there is an emission of semen, both must bathe with water, and they will remain unclean until evening.

19 When a woman has a discharge consisting of blood from her body, she will be unclean due to her menstruation for seven days, and anyone who touches her will be unclean until evening.

This was said to Israel at a particular time, so it is wise to read it together with the surrounding text. Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
Any clothing or leather on which there is an emission of semen must be washed with water, and it will remain unclean until evening.
KJV
And every garment, and every skin, whereon is the seed of copulation, shall be washed with water, and be unclean until the even.
WEB
Every garment and every skin which the semen is on shall be washed with water, and be unclean until the evening.
ASV
And every garment, and every skin, whereon is the seed of copulation, shall be washed with water, and be unclean until the even.
DARBY
And every garment, and every skin, whereon the seed of copulation shall be, shall be washed with water, and be unclean until the even.
BLB
And every garment and every skin on which there is seed [from] lying, it shall be washed with the water, and it shall be unclean until the evening.
ÅB
Og ethvert klæsplagg og ethvert skinn som det kommer sæd på, skal vaskes i varm og være urent til om kvelden.
OTB
Ethvert plagg eller lær som det er sæd på, må vaskes med vann og være urent til kvelden.
B1930
Og ethvert klæsplagg og ethvert skinn som det kommer sæd på, skal tvettes i varm og være urent til om aftenen.

Study notes (Tyndale)

Original text and word study