Deuteronomy 29:18

29:18 Beware 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. ¹ 

Isaiah 5:4

5:4 What more can I do for my vineyard

beyond what I have already done?

When I waited for it to produce edible grapes,

why did it produce sour ones instead?

Hebrews 12:15

12:15 See to it that no one comes short of the grace of God, that no one be like a bitter root springing up ²  and causing trouble, and through him many become defiled.

¹ tn Heb “yielding fruit poisonous and wormwood.” The Hebrew noun לַעֲנָה (la’anah) literally means “wormwood” (so KJV, ASV, NAB, NASB), but is used figuratively for anything extremely bitter, thus here “fruit poisonous and bitter.”

² tn Grk “that there not be any root of bitterness,” but referring figuratively to a person who causes trouble (as in Deut 29:17 [LXX] from which this is quoted).