Matthew 7:6
Give not that which is holy to dogs, nor throw your pearls before swine, lest they trample them under their feet, and turn again and tear you.
Luke 8:33
And the demons came out of the man, and went into the swine; and the herd rushed down a steep place into the lake, and were drowned.
Luke 15:15
And he went and attached himself to one of the citizens of that country, who sent him into his fields to feed swine.
2 Peter 2:18-22
For by speaking boastful words of folly, they allure through the lusts of the flesh, and through lasciviousness, those who had really escaped from those who live in error.