Revelation 8:10-12 (New International Version)
New International Version (NIV)
10 The third angel sounded his trumpet, and a great star, blazing like a torch, fell from the sky on a third of the rivers and on the springs of water— 11 the name of the star is Wormwood.[a] A third of the waters turned bitter, and many people died from the waters that had become bitter.
12 The fourth angel sounded his trumpet, and a third of the sun was struck, a third of the moon, and a third of the stars, so that a third of them turned dark. A third of the day was without light, and also a third of the night.
- Revelation 8:11 Wormwood is a bitter substance.