Hebrews 12:15 References

15 See to it that no one acomes short of the grace of God; that no broot of bitterness springing up causes trouble, and by it many be cdefiled;

b Deuteronomy 29:18

Deuteronomy 29

18 aso that there will not be among you a man or woman, or family or tribe, whose heart turns away today from the Lord our God, to go and serve the gods of those nations; that there will not be among you ba root bearing poisonous fruit and wormwood.

Other references for Hebrews 12:15

a 2 Corinthians 6:1, Galatians 5:4, Hebrews 4:1
c Titus 1:15