Matthew 7:6
Give not that which is holy to dogs, nor cast pearls before swine; lest they tread them under foot, and turning round tear you.
Luke 8:33
Then the devils going out of the man, entered into the swine; and the herd rushed down a precipice into the lake, and was suffocated.
Luke 15:15
And he went and connected himself with one of the citizens of that country; and he sent him into his fields to feed swine.
2 Peter 2:18-22
Uttering pompous discourses of inanity, ensnaring by the lusts of the flesh, by lascivious impurities, those who had truly escaped from such as live in a course of delusion.