11 So keep watch on yourselves, and see that you have love for the Lord your God.

12 For if you go back, joining yourselves to the rest of these nations who are still among you, getting married to them and living with them and they with you:

13 Then you may be certain that the Lord your God will not go on driving these nations out from before you; but they will become a danger and a cause of sin to you, a whip for your sides and thorns in your eyes, till you are cut off from this good land which the Lord your God has given you.