If Israel is God's people, and Persia is not - why does Israel suffer while Persia prospers? Where is the God of justice when it seems like the wicked thrive? God reminds them that He will come as a judge, not only for their enemies but also for them. The question is, are we ready for that day? How can sinful people endure the Day of the Lord? This passage points us to the cross where the justice and mercy of God meet.