We can praise God and have joy in the midst of prosperity and adversity because we have the mercy of God (1 Peter 1:3).

In this article on reprobation, the author discusses the fact that God passes by sinners, preterition, and the hardening of hearts. The author also talks about the love of God and the hate of God, the mercy of God, and reprobation and the zeal for missions. Romans 9:13-24 is also discussed in this article.