The sixth trumpet

¹³ Then the sixth angel made a sound with his trumpet. I heard a voice that spoke to him from the four corners of the gold altar. This altar is near to God himself. ¹⁴ The voice said to the sixth angel, ‘There are four angels at the great Euphrates river. Someone has tied them so that they cannot move. You must go and undo them!’ ¹⁵ So the four angels now became free. God had kept them ready for that special time, for that hour, in that day, in that month, in that year. They were now ready to kill a third of people everywhere.