Sometimes we have a hard time letting go of grievances, hurts, and insults. Many spend their nights thinking about those who’ve hurt them, wronged them, and mistreated them. But bitterness can rob us of more than a night’s sleep. Hebrews 12:15 tells us, “See to it that no one fails to obtain the grace of God; that no ‘root of bitterness’ springs up and causes trouble, and by it many become defiled.” So what does the word “DEFILE” mean? The word used here in Hebrews means “to pollute,” “to contaminate,” “to stain.”