Matthew 24:10
And then will many be ensnared, and they will deliver one another up, and hate one another;
Acts 23:7-10
And when he had said this, there arose a dissension between the Pharisees and the Sadducees, and the multitude was divided.
Galatians 5:15
But if you bite and devour one another, take heed lest you be utterly destroyed by one another.
James 3:14
But if you have bitter envying and strife in your hearts, glory not, and lie not against the truth.
James 3:16
For where envy and strife are, there is commotion, and every evil work.
James 4:1-3
Whence come wars and strifes among you? Come they not hence, even of your passions, which war in your members?