11 Bible Verses about Forbidden Alliances

You must not make a covenant with them or their gods. They must not remain in your land, or else they will make you sin against Me. If you worship their gods, it will be a snare for you.”

Be careful not to make a treaty with the inhabitants of the land that you are going to enter; otherwise, they will become a snare among you. Instead, you must tear down their altars, smash their sacred pillars, and chop down their Asherah poles. You are never to bow down to another god because Yahweh, being jealous by nature, is a jealous God. read more.
“Do not make a treaty with the inhabitants of the land, or else when they prostitute themselves with their gods and sacrifice to their gods, they will invite you, and you will eat their sacrifices.

and when the Lord your God delivers them over to you and you defeat them, you must completely destroy them. Make no treaty with them and show them no mercy.

You are not to make a covenant with the people who are living in this land, and you are to tear down their altars. But you have not obeyed Me. What is this you have done?

Then Jehu son of Hanani the seer went out to confront him and said to King Jehoshaphat, “Do you help the wicked and love those who hate the Lord? Because of this, the Lord’s wrath is on you.

Then Eliezer son of Dodavahu of Mareshah prophesied against Jehoshaphat, saying, “Because you formed an alliance with Ahaziah, the Lord has broken up what you have made.” So the ships were wrecked and were not able to go to Tarshish.

For this is what the Lord said to me with great power, to keep me from going the way of this people: Do not call everything an alliance
these people say is an alliance.
Do not fear what they fear;
do not be terrified.

They set out to go down to Egypt
without asking My advice,
in order to seek shelter under Pharaoh’s protection
and take refuge in Egypt’s shadow.

Woe to those who go down to Egypt for help
and who depend on horses!
They trust in the abundance of chariots
and in the large number of horsemen.
They do not look to the Holy One of Israel
and they do not seek the Lord’s help.

Ephraim is attached to idols;
leave him alone!

Ephraim chases the wind
and pursues the east wind.
He continually multiplies lies and violence.
He makes a covenant with Assyria,
and olive oil is carried to Egypt.