11 Bible Verses about Forbidden Alliances

Make no agreement with them or with their gods. Let them not go on living in your land, or they will make you do evil against me: for if you give worship to their gods, it will certainly be a cause of sin to you.

But take care, and do not make any agreement with the people of the land where you are going, for it will be a cause of sin to you. But their altars are to be overturned and their pillars broken and their images cut down: For you are to be worshippers of no other god: for the Lord is a God who will not give his honour to another.read more.
So see that you make no agreement with the people of the land, and do not go after their gods, or take part in their offerings, or be guests at their feasts,

And when the Lord has given them up into your hands and you have overcome them, give them up to complete destruction: make no agreement with them, and have no mercy on them:

And you are to make no agreement with the people of this land; you are to see that their altars are broken down: but you have not given ear to my voice: what have you done?

And Jehu, the son of Hanani the seer, went to King Jehoshaphat and said to him, Is it right for you to go to the help of evil-doers, loving the haters of the Lord? because of this, the wrath of the Lord has come on you.

Then the word of Eliezer the prophet, the son of Dodavahu of Mareshah, came against Jehoshaphat, saying, Because you have let yourself be joined with Ahaziah, the Lord has sent destruction on your works. And the ships were broken and were not able to go to Tarshish.

For the Lord, controlling me with a strong hand, gave me orders not to go in the way of this people, saying, Do not say, It is holy, about everything of which this people says, It is holy; and do not be in fear of what they go in fear of.

Who make a move to go down into Egypt, without authority from me; who are looking to the strength of Pharaoh for help, and whose hope is in the shade of Egypt.

Cursed are those who go down to Egypt for help, and who put their faith in horses; looking to war-carriages for salvation, because of their numbers; and to horsemen, because they are very strong; but they are not looking to the Holy One of Israel, or turning their hearts to the Lord;

Ephraim is joined to false gods; let him be.

Ephraim's food is the wind, and he goes after the east wind: deceit and destruction are increasing day by day; they make an agreement with Assyria, and take oil into Egypt.