In Revelation 15 and 16, we are drawing near to the end of this world as we know it. Our holy, just God has been patient with this darkened, sinful world for centuries, even sending his own Son to redeem those under wrath. But a day is coming when his patience ends and his wrath is poured out. This serves as a warning to all those who have rejected him, but it strengthens his followers, for his pure and perfect justice will be revealed.