Deuteronomy 14:8
The pig, because it divides the hoof but does not chew the cud, it is unclean for you. Do not eat any of their flesh nor touch their carcasses.
Leviticus 11:26-27
All animals whose hoofs are not completely divided or that do not chew their cud are unclean for you. Whoever touches them is unclean.
Isaiah 65:4
They sit among the graves and spend their nights keeping secret vigil. They eat the flesh of pigs. Their pots are full of unclean meat.
Isaiah 66:3
Whoever kills a bull is like someone who kills a person. Whoever sacrifices a lamb is like someone who breaks a dog's neck. Whoever offers a grain sacrifice is like someone who offers pig's blood. Whoever burns incense is like someone who worships an idol. People have certainly chosen their own ways, and they delight in detestable things.
Isaiah 66:17
People make themselves holy and prepare themselves for their garden rituals. They go into the garden and devour pork, disgusting things, and mice. They will come to an end at the same time, declares Jehovah.
Luke 15:15-16
He went to work for a citizen of that country who sent him to his farm to take care of the pigs.
2 Peter 2:22
It happened to them according to the true proverb: The dog returns to his own vomit, and the sow that had washed to wallowing in the mire.