To die in your sins means to die burdened with unrepentant sin, separated from God's grace and facing eternal condemnation.
Dying in your sins is presented in Scripture as the state of being indebted to God due to unconfessed and unrepented sin. Romans 5:18 teaches that by the offense of Adam, judgment came upon all men to condemnation. This describes the universal condition of humanity: we are born with a sinful nature, leading to the accumulation of sin and debt to God's justice. To die in this state is to face separation from God for all eternity, and this is a grave outcome that is taught throughout Scripture, echoing the dire circumstances of those who do not repent.
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