Matthew 10:34-36: “Do not suppose that I have come to bring peace to the earth. I did not come to bring peace, but a sword. For I have come to turn ‘a man against his father, a daughter against her mother, a daughter-in-law against her mother-in-law—a man’s enemies will be the members of his own household.’”
2 John 1:10-11: “If anyone comes to you and does not bring this teaching, do not take them into your house or welcome them. Anyone who welcomes them shares in their wicked work.”