How do we know God's providence is at work in our trials?

Throughout the narrative of David's flight from Absalom, we see how various circumstances, including trials from people like Ziba and Shimei, ultimately serve to fulfill God's will. David perceives Shimei's curse not just as an insult but as part of God's providence, believing that God may use this affliction for his good. This reflects a core Reformed understanding that God is sovereign over every circumstance, using even the actions of those who oppose Him to accomplish His divine purposes, as seen in Genesis 50:20 and Romans 8:28.