Mark 3:25
If a house is divided against itself, that house cannot stand.
Genesis 13:7-8
There was a strife between the herdsmen of Abram's livestock and the herdsmen of Lot's livestock: and the Canaanite and the Perizzite lived in the land at that time.
Genesis 37:4
His brothers saw that their father loved him more than all his brothers, and they hated him, and couldn't speak peaceably to him.
Psalm 133:1
See how good and how pleasant it is for brothers to live together in unity!
Galatians 5:15
But if you bite and devour one another, be careful that you don't consume one another.
James 3:16
For where jealousy and selfish ambition are, there is confusion and every evil deed.