Leviticus 20:14

14 If a man marries a woman and her mother, it is wickedness. They shall be burned with fire, both he and they, that there may be no wickedness among you.

Leviticus 20:14 In-Context

12 If a man lies with his daughter-in-law, both of them shall surely be put to death. They have committed perversion. Their blood shall be upon them.
13 If a man lies with a male as he lies with a woman, both of them have committed an abomination. They shall surely be put to death. Their blood shall be upon them.
14 If a man marries a woman 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 mates with an animal, he shall surely be put to death, and you shall kill the animal.
16 If a woman approaches any animal and mates with it, you shall kill the woman and the animal. They shall surely be put to death. Their blood is upon them.
Scripture taken from the New King James Version. Copyright © 1982 by Thomas Nelson, Inc. Used by permission. All rights reserved.