Joshua 23:11-13

11For your own sake, therefore, be most mindful to love Adonai your God.

12For if you ever go back and cling to the remnant of these nations that are still remaining among you, and intermarry with them, and you associate with them and they with you,

13know for certain that Adonai your God will no longer drive these nations out from before you. Instead they will become a snare and a trap for you, a scourge in your sides and thorns in your eyes, until you perish from this good land which Adonai your God has given you.