Joshua 23:12-15

For if you ever go back and cling to the rest of these nations, these which remain among you, and intermarry with them, so that you associate with them and they with you, know with certainty that the LORD your God will not continue to drive these nations out from before you; but they will be a snare and a trap to you, and a whip on your sides and thorns in your eyes, until you perish from off this good land which the LORD your God has given you. “Now behold, today I am going the way of all the earth, and you know in all your hearts and in all your souls that not one word of all the good words which the LORD your God spoke concerning you has failed; all have been fulfilled for you, not one of them has failed. It shall come about that just as all the good words which the LORD your God spoke to you have come upon you, so the LORD will bring upon you all the threats, until He has destroyed you from off this good land which the LORD your God has given you.