Mark 3:25
And if a house be divided against itself, that house cannot stand.
Genesis 13:7-8
And there was a strife between the herdsmen of Abram's cattle and the herdsmen of Lot's cattle. And the Canaanite and the Perizzite then dwelt in the land.
Genesis 37:4
And his brothers saw that their father loved him more than all his brothers. And they hated him, and could not speak peaceably to him.
Psalm 133:1
Behold, how good and how pleasant it is for brothers to dwell together in unity!
Galatians 5:15
But if ye bite and devour each other, watch out that ye be not consumed by each other.
James 3:16
For where envy and selfish ambition are, there is instability and every evil deed.