Matthew Poole and continuators on Leviticus 20:14

14 And if a man take a wife, and her mother, it is wickedness : they shall be burnt with fire, both he and they , that there be no wickedness among you.

(i. e.) Abominable and extraordinary wickedness, as the singularity of the punishment sheweth.

Either, or both or all of them, if they consented to it.

Marginal references: chap. 18. 17;