'Pig' in the Bible

the pig, though it has divided hooves,does not chew the cud—it is unclean for you.

and the pig, though it has hooves, it does not chew the cud—it is unclean for you.You must not eat their meat or touch their carcasses.

A ring of gold in [the] snout of a pig [is] a woman [who is] beautiful but without discretion.

The proverb is true that describes what has happened to them: "A dog returns to its vomit," and "A pig that is washed goes back to wallow in the mud."