Sin is often chosen as an attempt to meet legitimate needs in illegitimate ways, creating a "counterfeit life" that never fully satisfies.
A "sinful life" from a biblical perspective is generally defined as one characterized by "missing the mark"—falling short of the divine standard of perfection, often marked by self-centeredness and a separation from God.
Sin causes a separation between the individual and God, which can lead to a lack of peace.
Sin is not always explosive disobedience; it is often the passive act of failing to fully love God and others.