Revelation 8:11
(The star is called 'Wormwood.') A third of the water became bitter as wormwood, and so bitter was the water that many died from drinking it.
Hebrews 12:15
Take care that no one fails to use the loving help of God, 'that no bitterness is allowed to take root and spring up, and cause trouble,' and so poison the whole community.
Revelation 8:7
The first blew; and there came hail and fire mixed with blood, and it fell upon the earth. A third part of the earth was burnt up, and a third of the trees, and every blade of grass.
Treasury of Scripture Knowledge
Summary
And the name of the star is called Wormwood: and the third part of the waters became wormwood; and many men died of the waters, because they were made bitter.
Wormwood
Bible References
Wormwood
Hebrews 12:15
Take care that no one fails to use the loving help of God, 'that no bitterness is allowed to take root and spring up, and cause trouble,' and so poison the whole community.