Our Scripture reading today is Hebrews 12:15, "Looking diligently lest any man fail of the grace of God; lest any root of bitterness springing up trouble you, and thereby many be defiled;"
Please pay special attention to the last part of the verse. It gives a warning that bitterness in your life and mine will cause trouble in many other lives. No doubt about it that bitterness is already causing trouble in the container it is kept in, but we also need to remember how quickly bitterness will spread.
“A bitter root is a root that bears bitter fruit… So it is possible for the seed of bitterness to be sown in a community and, though nothing is immediately apparent, in due time the inevitable fruit appears.” (Morris)
This "community" could be your home, place of employment, or church. If needed, pull up the root of bitterness before the fruit comes.