Matthew 10:34 in the King James Version
Think not that I am come to send peace on earth: I came not to send peace, but a sword.
Context
33 But whoever denies me before men, I will also deny him before my Father who is in heaven.
34 “Don’t think that I came to send peace on the earth. I didn’t come to send peace, but a sword.
35 For I came to set a man at odds against his father, and a daughter against her mother, and a daughter-in-law against her mother-in-law.