Deuteronomy 29:18-19

18Beware that the heart of no man, woman, clan, or tribe among you turns away from the Lord our God today to pursue and serve the gods of those nations; beware that there is among you no root producing poisonous and bitter fruit.

19When such a person hears the words of this oath he secretly blesses himself and says, “I will have peace though I continue to walk with a stubborn spirit.” This will destroy the watered ground with the parched.