Leviticus 20:15 in the King James Version
And if a man lie with a beast, he shall surely be put to death: and ye shall slay the beast.
Context
14 “‘If a man takes a wife and her mother, it is wickedness. They shall be burned with fire, both he and they, that there may be no wickedness among you.
15 “‘If a man lies with an animal, he shall surely be put to death; and you shall kill the animal.
16 “‘If a woman approaches any animal and lies with it, you shall kill the woman and the animal. They shall surely be put to death. Their blood shall be upon them.