How do we know that God's sovereignty includes appointed death?

God's sovereignty encompasses every aspect of life, including the appointed time of our death. Psalm 139:16 states, 'Your eyes saw my unformed body; all the days ordained for me were written in your book before one of them came to be.' This implies that God has predetermined each person's life span and the circumstances surrounding their death. The assurance that God has set these times fosters a sense of peace and trust in His ultimate plan, reminding us that we are never outside of His sovereign will.