TSK · Leviticus 11:7

Also the pig is ritually impure to you; though it has divided hooves, it does not chew the cud. You may not eat their meat or even touch their remains.

The one who slaughters a bull also strikes down a man; the one who sacrifices a lamb also breaks a dog’s neck; the one who presents an offering includes pig’s blood with it; the one who offers incense also praises an idol. They have decided to behave this way; they enjoy these disgusting practices.

Do not give what is holy to dogs or throw your pearls before pigs; otherwise they will trample them under their feet and turn around and tear you to pieces.

So he went and worked for one of the citizens of that country, who sent him to his fields to feed pigs.