What examples of God's mercy and judgment are presented in the Bible?

In the Scriptures, God uses the lives of Pharaoh and Saul of Tarsus to illustrate His mercy and sovereign judgment. Pharaoh, who hardened his heart against God, ultimately faced God's judgment, whereas Saul was shown mercy on the road to Damascus, transforming from a persecutor of Christians to a devoted apostle. This dynamic reinforces the teaching that God chooses whom to show mercy and whom to harden, as demonstrated in Romans 9:17, where God says to Pharaoh, 'For this same purpose have I raised thee up, that I might show my power in thee.' Through these examples, we see that God's sovereign will is at work in both demonstrating His mercy and executing His judgment, underlining His ultimate control over all creation.