Deuteronomy 20:10-18
When you approach a city to fight against it, you are to make an offer of peace. / If they accept your offer of peace and open their gates, all the people there will become forced laborers to serve you. / But if they refuse to make peace with you and wage war against you, lay siege to that city. ...

Exodus 23:32-33
You shall make no covenant with them or with their gods. / They must not remain in your land, lest they cause you to sin against Me. For if you serve their gods, it will surely be a snare to you.”

Exodus 34:12
Be careful not to make a treaty with the inhabitants of the land you are entering, lest they become a snare in your midst.

Numbers 33:55
But if you do not drive out the inhabitants of the land before you, those you allow to remain will become barbs in your eyes and thorns in your sides; they will harass you in the land where you settle.

Deuteronomy 7:1-2
When the LORD your God brings you into the land that you are entering to possess, and He drives out before you many nations—the Hittites, Girgashites, Amorites, Canaanites, Perizzites, Hivites, and Jebusites, seven nations larger and stronger than you— / and when the LORD your God has delivered them over to you to defeat them, then you must devote them to complete destruction. Make no treaty with them and show them no mercy.

Judges 2:2-3
and you are not to make a covenant with the people of this land, but you shall tear down their altars.’ Yet you have not obeyed My voice. What is this you have done? / So now I tell you that I will not drive out these people before you; they will be thorns in your sides, and their gods will be a snare to you.”

2 Samuel 21:1-2
During the reign of David there was a famine for three successive years, and David sought the face of the LORD. And the LORD said, “It is because of the blood shed by Saul and his family, because he killed the Gibeonites.” / At this, David summoned the Gibeonites and spoke to them. (Now the Gibeonites were not Israelites, but a remnant of the Amorites. The Israelites had taken an oath concerning them, but in his zeal for Israel and Judah, Saul had sought to kill them.)

1 Kings 9:20-21
As for all the people who remained of the Amorites, Hittites, Perizzites, Hivites, and Jebusites (the people who were not Israelites)— / their descendants who remained in the land, those whom the Israelites were unable to devote to destruction—Solomon conscripted these people to be forced laborers, as they are to this day.

Psalm 106:34-36
They did not destroy the peoples as the LORD had commanded them, / but they mingled with the nations and adopted their customs. / They worshiped their idols, which became a snare to them.

Ezra 9:1-2
After these things had been accomplished, the leaders approached me and said, “The people of Israel, including the priests and Levites, have not kept themselves separate from the surrounding peoples whose abominations are like those of the Canaanites, Hittites, Perizzites, Jebusites, Ammonites, Moabites, Egyptians, and Amorites. / Indeed, the Israelites have taken some of their daughters as wives for themselves and their sons, so that the holy seed has been mixed with the people of the land. And the leaders and officials have taken the lead in this unfaithfulness!”

Nehemiah 13:23-27
In those days I also saw Jews who had married women from Ashdod, Ammon, and Moab. / Half of their children spoke the language of Ashdod or of the other peoples, but could not speak the language of Judah. / I rebuked them and called down curses on them. I beat some of these men and pulled out their hair. Then I made them take an oath before God and said, “You must not give your daughters in marriage to their sons or take their daughters as wives for your sons or for yourselves! ...

2 Corinthians 6:14-17
Do not be unequally yoked with unbelievers. For what partnership can righteousness have with wickedness? Or what fellowship does light have with darkness? / What harmony is there between Christ and Belial? Or what does a believer have in common with an unbeliever? / What agreement can exist between the temple of God and idols? For we are the temple of the living God. As God has said: “I will dwell with them and walk among them, and I will be their God, and they will be My people.” ...

Ephesians 5:6-7
Let no one deceive you with empty words, for because of such things the wrath of God is coming on the sons of disobedience. / Therefore do not be partakers with them.

1 Corinthians 5:9-11
I wrote you in my letter not to associate with sexually immoral people. / I was not including the sexually immoral of this world, or the greedy and swindlers, or idolaters. In that case you would have to leave this world. / But now I am writing you not to associate with anyone who claims to be a brother but is sexually immoral or greedy, an idolater or a verbal abuser, a drunkard or a swindler. With such a man do not even eat.

1 Corinthians 10:20-21
No, but the sacrifices of pagans are offered to demons, not to God. And I do not want you to be participants with demons. / You cannot drink the cup of the Lord and the cup of demons too; you cannot partake in the table of the Lord and the table of demons too.