Joshua 23:12-13

12You must not turn away from him to join with the other nations that still live near you. Do not marry any of them. Do not live in the way that they live.

13If you do that, the Lord your God will not chase them out in front of you any more. Instead, those nations will become a danger for you. They will be like a trap that catches you. They will be like sticks that beat your backs, and like sharp thorns in your eyes. They will bring trouble to you until none of you remain in this good land that the Lord your God has given to you.