Matthew 12:25
Knowing their thoughts Jesus said to them, "Every kingdom [plagued] with internal division will end in ruin. And every city or household divided from within will not survive.
Matthew 26:73
And a little later, those standing nearby came to Peter and said, "[We know] for sure, you also are one of them [i.e., Jesus' disciples], because your accent gives you away."
Mark 14:70
But again he denied it. Then after a little while those standing nearby said to Peter again, "We know for sure that you are one of them because you are from Galilee." [Note: Peter's accent gave him away. See Matt. 26:73].
Galatians 5:15
But if you [unlovingly] bite and eat one another [i.e., figuratively], be careful that you do not totally consume one another.