Luke 11:8. I say unto you, Though he will not rise and give him, because he is his friend, yet because of his importunity he will rise and give him as many as he needeth.
Galatians 5:15. But if ye bite and devour one another, take heed that ye be not consumed one of another.
Sirach 25:22. There is no head worse than the head of a serpent: