Revelation 8:11
(the name of the star is Wormwood); a third of the waters became wormwood, and many people died of the waters, because they had turned bitter.
Hebrews 12:15
see to it that no one misses the grace of God, that no root of bitterness grows up to be a trouble by contaminating all the rest of you;
Revelation 8:7
The first blew, and there came hail and fire mixed with blood, falling on the earth; a third of the earth was burnt up, a third of the trees were burnt up, and all the green grass was burnt up.
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
see to it that no one misses the grace of God, that no root of bitterness grows up to be a trouble by contaminating all the rest of you;