Matthew 7:6
"You must never give the things that are sacred to dogs, and you must never throw your pearls before hogs, for fear they might trample them under their feet and turn and tear you to pieces.
Luke 8:33
Then the demons came out of the man and went into the hogs, and the drove rushed over the cliff into the lake and were drowned.
Luke 15:15
So he went and hired himself out to a citizen of that country, and he sent him to his fields to feed hogs.
2 Peter 2:18-22
For by uttering arrogant nonsense, through base desires of the lower nature, they entice into immorality men who are just escaping from those who live in error,