Matthew 12:25
Knowing their thoughts, Jesus said to them, “Every kingdom divided against itself will be laid waste, and every city or household divided against itself will not stand.

Luke 11:17
Knowing their thoughts, Jesus said to them, “Every kingdom divided against itself will be laid waste, and a house divided against a house will fall.

Isaiah 9:21
Manasseh devours Ephraim, and Ephraim Manasseh; together they turn against Judah. Despite all this, His anger is not turned away; His hand is still upraised.

1 Kings 12:16
When all Israel saw that the king had refused to listen to them, they answered the king: “What portion do we have in David, and what inheritance in the son of Jesse? To your tents, O Israel! Look now to your own house, O David!” So the Israelites went home,

2 Samuel 15:10-12
Then Absalom sent spies throughout the tribes of Israel with this message: “When you hear the sound of the horn, you are to say, ‘Absalom reigns in Hebron!’” / Two hundred men from Jerusalem accompanied Absalom. They had been invited as guests and they went along innocently, for they knew nothing about the matter. / While Absalom was offering the sacrifices, he sent for Ahithophel the Gilonite, David’s counselor, to come from his hometown of Giloh. So the conspiracy gained strength, and Absalom’s following kept increasing.

Judges 9:23-57
God sent a spirit of animosity between Abimelech and the leaders of Shechem and caused them to treat Abimelech deceitfully, / in order that the crime against the seventy sons of Jerubbaal might come to justice and their blood be avenged on their brother Abimelech and on the leaders of Shechem, who had helped him murder his brothers. / The leaders of Shechem set up an ambush against Abimelech on the hilltops, and they robbed all who passed by them on the road. So this was reported to Abimelech. ...

1 Corinthians 1:10
I appeal to you, brothers, in the name of our Lord Jesus Christ, that all of you agree together, so that there may be no divisions among you and that you may be united in mind and conviction.

Galatians 5:15
But if you keep on biting and devouring one another, watch out, or you will be consumed by one another.

James 3:16
For where jealousy and selfish ambition exist, there will be disorder and every evil practice.

John 17:21
that all of them may be one, as You, Father, are in Me, and I am in You. May they also be in Us, so that the world may believe that You sent Me.

1 Corinthians 3:3
for you are still worldly. For since there is jealousy and dissension among you, are you not worldly? Are you not walking in the way of man?

Ephesians 4:3
and with diligence to preserve the unity of the Spirit through the bond of peace.

Romans 16:17
Now I urge you, brothers, to watch out for those who create divisions and obstacles that are contrary to the teaching you have learned. Turn away from them.

Proverbs 17:14
To start a quarrel is to release a flood; so abandon the dispute before it breaks out.

Proverbs 6:19
a false witness who gives false testimony, and one who stirs up discord among brothers.