What does the Bible say about death and its universality?

The Scriptures clearly highlight that death is a universal human experience, stemming from the original sin of Adam. Romans 5:12 explains that through one man sin entered the world and death through sin, which spread to all because all have sinned. This universal appointment of death serves as a constant reminder of humanity's fallen nature and the need for redemption. Aaron's death, despite his high status as the high priest, exemplifies that even those in positions of honor cannot escape the reality of human mortality. This appointment underscores God’s immutable purpose and sovereignty in orchestrating human history towards His glory and salvation.