Revelation 8:10-11

Young's Literal Translation

¹⁰ And the third messenger did sound, and there fell out of the heaven a great star, burning as a lamp, and it did fall upon the third of the rivers, and upon the fountains of waters,

¹¹ and the name of the star is called Wormwood, and the third of the waters doth become wormwood, and many of the men did die of the waters, because they were made bitter.