Deuteronomy 29:18

18Beware lest there be among you a man or woman or clan or tribe whose heart is turning away today from the Lord our God to go and serve the gods of those nations. Beware lest there be among you aa root bearing poisonous and bitter fruit,

Isaiah 5:4

4 bWhat more was there to do for my vineyard,
that I have not done in it?
cWhen I looked for it to yield grapes,
why did it yield wild grapes?

Hebrews 12:15

15See to it that no one dfails to obtain the grace of God; that no eroot of bitternesssprings up and causes trouble, and by it many become defiled;
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