Revelation 8:10-11 - The Third Trumpet
10 Then the third angel blew his trumpet, and there fell from the sky a great star blazing like a torch, and it fell upon one third of the streams and the springs of water. 11 The star is called Apsinthus, that is, Wormwood. Then one third of the waters turned to wormwood, and numbers of people died of the waters, for they had turned bitter.